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All Technical Articles - Nanotechnology

All Newsroom Technical Articles, starting with the most recently posted:

Glassy carbon nanolattices fabricated using 3D direct laser writing and pyrolysis are the smallest 3D printed lattice structures to date.
21 June 2017
Nanoparticles in a liquid-crystal nanocomposite can be sorted via elastic forces to form 3D solid structures such as capsules and networks.
16 June 2017
A new approach enables the fast simulation of chip-scale imprinting, helping to co-optimize layout designs and processing parameters for acceptable yield and throughput in memory manufacturing.
29 May 2017
A universal map, based on power conservation, reveals all allowable scattering states in a single plot and can be used to inversely design field-controllable structures.
23 May 2017
Specialized smart tips and topographic filters are used to fully realize high-spatial-resolution and high-chemical-sensitivity imaging with synchrotron x-ray scanning tunneling microscopy.
11 May 2017
A novel fabrication procedure is used to produce flexible devices that include inorganic semiconductor nanowires and that can compete with organic devices in terms of brightness.
3 May 2017
A new silicon waveguide device provides high-performance, ultra-broadband on-chip beamsplitting with a very compact footprint.
25 April 2017
A simple and cost-effective sol-gel method produces stable titanium dioxide and titanium oxynitride photoresists, and is compatible with many photolithographic techniques.
10 April 2017
A whole family of promising nanoengineered photocatalysts have been identified to enable the generation of solar fuels, hydrogen, and oxygen via artificial photosynthesis.
4 April 2017
Hybrid-material optical fibers that enable supercontinuum generation show potential for application in widely tunable broadband light sources.
23 March 2017
Freestanding diamond nanostructures are etched from a bulk diamond substrate and integrated with evanescently coupled superconducting nanowire single-photon detectors.
22 March 2017
An electron beam evaporation method is used to fabricate deep-sub-wavelength photonic devices with optical properties that are superior to similar gold components and that are suitable for commercialization.
16 March 2017
Surface-enhanced Raman scattering can be used as an alternative approach for evaluating the toxicity of nanoparticles in single living cells, bypassing the complications faced by conventional cytotoxicity assays.
12 March 2017
SPIE Photonics West 2016 Plenary

From the SPIE Photonics West Show Daily: 2D tunable materials would allow researchers to "move from still-life daguerreotype nanophotonics to the film and television era."

9 March 2017
Cesium lead bromide perovskite nanocrystals are used to generate white light that can be used as both an efficient lighting source and for ultrafast data transfer.
22 February 2017
Photonics West_thumb

From the SPIE Photonics West Show Daily:The first-ever neurophotonics plenary session at Photonics West featured 10 rapid-fire presentations covering the broad spectrum of current neurophotonics R&D.

16 February 2017
Photonics West_thumb

From the SPIE Photonics West Show Daily: Advances in microscopy dominated the BiOS Hot Topics presentations at Photonics West, detailing advances in new techniques that could dramatically influence molecular research, drug development, and clinical diagnostics.

15 February 2017
A suite of flexible and biocompatible threads, embedded with sensors and electronics, can be sutured/woven into tissue for in situ measurements of physical and chemical biomarkers.
13 February 2017
A novel approach for guiding spin waves on the nanoscale has been experimentally verified and is an important step toward realizing spin-wave information transport for wave-based logic circuitry.
6 February 2017
Semiconductor nanowires, with lasing emission at room temperature, can be transferred in a controlled way to specific locations on diverse substrates and organized into bespoke spatial patterns.
31 January 2017
Metasurfaces provide an inexpensive and easily fabricated platform for building complex optical surfaces that enable novel functionalities and can be used in simplified compound optical systems.
20 January 2017
An innovative technique is used to pattern ultrahigh-aspect-ratio coplanar electrodes and to enable inexpensive, high-throughput printing of devices on large-area, flexible substrates.
16 January 2017
Novel structures exhibit highly directional emission and provide a template for site-controlled quantum dots and self-aligned nanophotonic cavities.
12 January 2017
A novel super-resolution approach involves nonlinear scattering from plasmonic nanostructures, including saturation and all-optical switching.
10 January 2017
Metal and metal oxide nanoparticles are produced on the gram scale with a novel ablation setup that includes a high-power pulsed-laser system, an ultrafast laser scanner, and a customized ablation chamber.
6 January 2017
UV light exposure causes modification of the glass transition temperature in the skin layer of polymeric lenses and enables smoothing without structural changes.
3 January 2017
In a novel technique, x-ray nanoimaging is combined with spectroscopy to track the phase transformation inside the cathode material of an operating battery cell.
12 December 2016
Plasmonic oscillations on graphene and 2D biocompatible nanomaterials are combined to yield ultrasensitive devices suitable for clinical diagnostics and early treatment of disease.
9 December 2016
Unraveling the coherent optical response of excited quasi-particles inside semiconductor devices will lay the foundation for the rational design of future photonic devices operating in the quantum regime.
7 December 2016
In the Active Learning in Optics and Photonics program teachers are taught inquiry-based strategies, and low-cost optics technologies are brought to the classroom.
21 November 2016
Immensely concentrated sunlight provides a novel method for the synthesis of many nanomaterials that possess remarkable photonic, tribological, electronic, and catalytic properties.
17 November 2016
A new and versatile method for integrating light-emitting nanoparticles, without loss of their unique properties, into glass is demonstrated.
8 November 2016
A high-throughput and reproducible lithographic approach enables the formation of ordered nanostructures on optical fiber tips that act as efficient surface-enhanced Raman spectroscopy detectors.
4 November 2016
Metallic magnetoplasmonic nanostructures are used for the transducer layers in novel probes to achieve enhanced sensitivity.
24 October 2016
Two-dimensional field-resolved spectroscopy of Landau electrons reveals population inversion and multiwave mixing that are explained by Coulomb interactions between electrons and the ionic background.
19 October 2016
A novel laser ablation in liquids approach, with ultrashort laser pulses, is used to fabricate substrates for surface-enhanced Raman spectroscopy of secondary explosive molecules.
18 October 2016
Small laser spots can have a negative impact on the accuracy and precision of measurements when used in surface-enhanced Raman scattering for quantitative characterization.
14 October 2016
A novel dark-field Mueller-matrix spectroscopic system facilitates the recording of complete polarization information from a single isolated plasmonic nanorod.
21 September 2016
Cobalt disulfide and cobalt diselenide thin films act as cocatalysts and passivation layers to improve the performance and stability of silicon microwire photocathodes.
19 September 2016
The shared-aperture phased antenna array and geometric phase concepts are combined in a novel technique to obtain photonic spin-controlled multifunctional devices.
19 September 2016
Solution-processing methods are used to synthesize metal-oxide nanoparticle suspensions and thus realize efficient and stable devices.
8 September 2016

A novel fabrication process from the Capasso lab develops highly efficient planar metalenses that allow for diffraction-limited focusing, unprecedented imaging quality, and the ability to resolve chirality.

6 September 2016
A photothermal nanoblade couples a metal-tip-coated, wide-bore micropipette and a pulsed laser to induce a microscopic ‘explosion’ that cuts cell membranes, enabling the delivery of mitochondria.
1 September 2016
A novel class of nonlinear phenomena in metallic nanostructures, determined by nonlocality of the electron response, could find numerous applications in nanoscale nonlinear optics.
1 September 2016
A quantum heat engine can be realized by subjecting a single layer of graphene to a combination of an external magnetic field and mechanical strain.
30 August 2016
Optically anisotropic liquid crystal polymer layers are used in each resonant cavity of a resonator array to achieve image selection by polarization for low-cost security labels.
25 August 2016
An assay based on silver nanoparticles of different colors provides rapid diagnosis for multiple diseases.
24 August 2016
Nanoscale patterning transforms weak absorbers into near-perfect absorbers that may be used for night vision and agricultural monitoring applications.
24 August 2016

Tactile sensors and ‘electronic skin’ made from 2D materials could be worn on the body to enable continuous monitoring of motion.

18 August 2016
A novel synthesis method provides nanoparticles that are terminated with carbonate-like groups and creates an amorphous/crystalline structure for effective separation of electron-hole pairs.
12 August 2016
Two-photon spectroscopy reveals that deep-UV light emission originates from phonon-assisted transitions in hexagonal boron nitride.
10 August 2016
A novel strategy is used to synthesize porous gold-silver alloy nanospheres encased in ultrathin silica shells that can act as highly sensitive single-particle probes.
4 August 2016
High-resolution transmission electron microscopy is combined with a novel preparation method, based on superhydrophobic sample control, to achieve a spatial resolution of down to 1.5Å.
3 August 2016
A microsphere superlens is used to convert evanescent waves into propagating waves and provide an imaging efficiency that is 40 times higher than for atomic force microscopy.
2 August 2016
Accurate mechanical measurement of stiffness in individual breast tumor cells provides information that can assist with disease prognosis.
1 August 2016
Interfacial triplet-triplet energy transfer is used to significantly extend the exciton lifetime of cadmium selenide nanocrystals in an experimental demonstration of their molecular-like photochemistry.
25 July 2016
A novel material composed of nanostructured, decoupled graphene layers, inspired by the humble moth, is the most light-absorbent for its weight to date.
18 July 2016
Silicon quantum dots that are co-doped with boron and phosphorus exhibit bright and stable luminescence in the near-IR wavelength range and are environmentally friendly.
6 July 2016

A graphene-based electronic patch monitors glucose in sweat noninvasively and provides feedback-controlled drug delivery by using microneedles with a heat-responsive coating.

29 June 2016
A photoactivated technique targets tumor cells and simultaneously triggers the release of inhibitors at ‘ the right time and place’ to block the mechanisms that enable some cancers to escape treatment.
24 June 2016
Spectroscopy studies of charge transfer from cadmium selenide quantum dots to molecular nickel catalysts reveal unexpectedly fast electron transfer, enabling exceptional photocatalytic hydrogen production.
18 June 2016
Spiral nanogrooves and nanoring slits are used on an integrated device to achieve parallel manipulation of the angular momentum of light and thus pave the way for ultrawide bandwidth optical technologies.
13 June 2016
A novel process obtains high-performing single-layer perovskite LEDs that can be fabricated easily and economically in ambient conditions.
10 June 2016
Low-cost, low-dimensional nanoarchitectures provide optimal structures for charge collection in large-scale solar energy harvesting and conversion applications.
9 June 2016
Coupling a nanoantenna metasurface with its Babinet-inverted counterpart gives rise to extremely high-performance bilayer structures.
6 June 2016
A giant optical path length is created from a few layers of molybdenum disulfide and is used to fabricate an ultra-thin optical lens.
31 May 2016
A simple method for controlling the shape of cadmium sulfide nanocrystals has been developed, and the nanocrystals used as photocatalysts for water splitting.
24 May 2016
Lanthanum fluoride particles passively collect in tumors and amplify applied radiation doses, while also transferring energy to photosensitizer dyes that enable the targeting of cancerous cells.
20 May 2016
A novel passive repeater, based on a chain of 3D dielectric particles, has been proposed and numerically simulated.
19 May 2016
A scanning transmission electron microscope coupled to a Hanbury Brown and Twiss interferometer is used to achieve cathodoluminescence in a novel experimental technique.
19 May 2016
A novel dielectric metasurface platform provides simultaneous and complete control of optical wavefront and polarization with subwavelength spatial resolution and high transmission efficiency.
13 May 2016
A new full-field transmission x-ray microscope has spatial resolution as high as 20nm and an in situ imaging capability.
12 May 2016
A hexagonally patterned hyperlens array enables high-throughput super-resolution imaging of living cells, without the need for complex optical systems.
4 May 2016

A physical analytical model has been developed for a novel graphene-nanoribbon-based device.

2 May 2016
Quantum dots exhibit a measurable rapid photoluminescence response to neuron-like electric fields and can thus be used to observe neuronal action potentials.
27 April 2016
DNA can align liquid crystal molecules, providing a convenient and inexpensive template for the fabrication of new LCD devices.
25 April 2016
Functionalizing metal oxides with heterojunction nanostructures improves optical absorption and charge carrier mobility and reduces electron–hole recombination for photoelectrochemical water splitting.
22 April 2016
The butterfly proboscis is a unique, naturally engineered device for acquiring liquid food, and may inspire novel developments in micro- and nanofluidic engineering.
21 April 2016
Combining a plasmonic photomixer with a novel two-section digital distributed feedback laser diode enables generation of high-power, wavelength-tunable terahertz radiation at room temperature.
19 April 2016
Twisted graphene quantum dots, with chiral amino acids around their edges, enable a new biocompatible nanomaterial that displays chiral selectivity when interacting with live cells.
13 April 2016
New material architectures and electrode surface topographies are used in high-power batteries to improve battery lifetime and cell stability.
8 April 2016
Nanoimprint technology combined with defect management could significantly reduce the cost of lithography for fabricating semiconductor devices.
7 April 2016
The lithographic capabilities of a photoresist-based material facilitate direct 3D manufacturing of electrically conductive and transparent nanostructures.
4 April 2016
A novel approach merges the sensitivity of plasmon-enhanced spectroscopies with the quality and integrability of semiconductor devices for mid-IR sensing.
25 March 2016
A new type of chemical sensor is based on a magnetic surface spin wave oscillator as a magnetic field detector, combined with a layer of magnetic nanoparticles as the gas-sensitive medium.
16 March 2016
Conventional microprocessing materials and tools are used in a novel high-throughput fabrication technique.
15 March 2016

Novel solar thermal collectors that incorporate optics and absorbers based on metamaterials and nanoparticle suspensions can provide high-temperature heat for industrial applications.

14 March 2016
Femtosecond laser pulses can be used to switch magnetic domains in terbium iron cobalt, showing promise for light-based computer memory.
9 March 2016
Advances in laser cooling of atoms have produced a new generation of inertial sensors based on matter-wave interferometers, which are becoming an essential technology for accurate positioning or geodesy.
1 March 2016
Metal-oxide nanostructures and composites have potential as functional materials for the development of renewable-energy resources and technologies.
29 February 2016
The DNA nucleobase guanine can maintain graphene's electrical properties, and may have potential applications in flexible, graphene-based sensors for use on the body.
18 February 2016
Detecting proteins and nanobioparticles using microarray technologies enables resolution and sensitivity beyond the reach of ensemble measurements.
18 February 2016
Solid-state nanopores for use in DNA sequencing are fabricated using a polycrystalline silicon sacrificial layer process.
17 February 2016
A purely chemical quasi-isotropic diamond etch is used to undercut devices patterned from bulk diamond chips.
17 February 2016
A new theoretical framework allows several thermodynamic parameters, such as efficiency and entropy current, to be defined.
12 February 2016

The singly quantized vortices in superfluids can provide an ‘atomic theory’ of turbulence (for which there is no general theory), enabling a ‘video camera’ operating at ∼100 microkelvin to image vortices.

11 February 2016
High-index microspheres embedded within movable slabs, or microfibers, are used in a novel approach for super-resolution imaging of nanoplasmonic arrays.
11 February 2016
Aggregation of nanoparticles can cause significant changes in the absorption and scattering coefficients of suspensions.
8 February 2016
A firm control over parameters affecting the electrospinning fabrication method enables better production of nanofilaments and devices based on them.
4 February 2016
Integration of planar nanophotonics and microfluidics offers a new route for high-throughput sorting of bacterial cells in real time.
28 January 2016
Coupled dipole-patch nano-antenna cells are used in a new approach to impose an arbitrary phase profile on reflected light.
28 January 2016
Catalytic oxidation of boron nitride nanosheets creates pits and holes that have well-defined shapes and edges, enabling ‘holey graphene’ for applications in electronics and molecular transport.
26 January 2016
Lunar Flashlight is an innovative, low-cost mission that will use near-IR lasers to map water ice at the lunar south pole.
25 January 2016
Two simple room-temperature and solution-based chemical processes are used to realize a new class of silver nano-network-based devices.
20 January 2016
Plant extracts are used in a simple, low-cost, and bio-mediated approach for the production of nanostructures with low cytotoxicity levels.
18 January 2016
A random distribution of nanospheres resting on nanorods creates an almost ideal black body.
11 January 2016
Melt-quenching of vanadate compounds containing varying amounts of cadmium oxide and vanadium oxide enables structural transformation from polycrystalline to amorphous.
6 January 2016
Current-voltage measurements of atomic-scale variations in resonant tunneling diodes can be used to provide secure fingerprints.
5 January 2016
Photonic crystals can be used to produce materials that have higher values of pseudospin than graphene.
4 January 2016
A continuous ring of singularities called exceptional points can be generated from a Dirac cone in a 3D photonic crystal slab, with potential applications in optical devices.
28 December 2015
A one-step rapid holographic recording technique based on a nanosecond laser pulse enables optical structures to be printed on transparent substrates coated with light-absorbing materials.
23 December 2015
Environmentally friendly nanoparticles may enable integration of luminescent solar concentrator technology in optically active photovoltaic windows with high conversion efficiency.
9 December 2015
A technique combining Raman and Fourier transform IR spectroscopies enables simultaneous topographical and chemical imaging at high resolution.
4 December 2015
A new imaging technique uses force detection of optical excitations to generate maps of molecules and materials with nanometer resolution.
27 November 2015
A novel method for fusing crystal- and silicon-photonics technologies exhibits a high quality factor, showing promise for the realization of all-optical signal processing on a chip.
17 November 2015
Novel ultra-small devices can convert near-IR radiation to bright visible light with unprecedented conversion efficiency.
12 November 2015

The key advances for lighting technologies in the 21st century are driven primarily by energy efficiency, color quality, and cost-effectiveness. The Journal of Photonics for Energy celebrates the International Year of Light.

11 November 2015

Major breakthroughs in photonics are changing how solar energy will power our future, how light illuminates our lives, and how technology will connect us to each other in new ways. The Journal of Photonics for Energy celebrates the International Year of Light.

4 November 2015
A graphene-based quantum-point-contact transistor with a nanopore enables the sensing of double- and single-stranded DNA.
4 November 2015
Supported membranes typically used in bionanotechnological devices have a higher degree of order than free membranes and show lipid clustering, which could affect device functioning.
3 November 2015
A nanoplasmonic array of gold nanodisks supports delocalized transport of nanoparticles and has several potential applications in nanotechnology, atomic physics, and biology.
22 October 2015
By combining electrical switching and light emission, organic light-emitting transistors promise greater efficiency than organic LEDs for novel organic photonic and display technologies.
21 October 2015
Recent improvements in nanoplasmonics have application in solar cells, sensors, nanoscale circuits, and superlenses.
15 October 2015
A technique to transfer micro- and nanostructured flat substrates onto seamless rollers enables manufacture of improved surfaces for optical displays and solar power applications.
12 October 2015
Grade-school students in New York City can have a hands-on educational experience with a scanning electron microscope on board the BioBus.
2 October 2015
Multilayer coatings composed of inorganic layers and organic nanostructures improve the broadband antireflection performance of optical elements.
1 October 2015
Silicon nanowires prepared by wet etching and decorated by metal nanoparticles enable interference-free laser desorption-ionization mass spectrometry of low-molecular-weight analytes.
18 September 2015
Nonlinear quantum mechanical interactions between light and matter could lead to all-optical switching and transistor action for optical-computing platforms.
15 September 2015
Experimental demonstration of the nonlinear mirror effect in a medium with negative refractive index confirms a decade-old prediction, and expands the scope of nonlinear optics in artificially structured media.
9 September 2015
The use of blue-phase liquid crystals in bandpass filters based on photonic integrated circuits enables the birefringence to be modulated via optical tuning.
4 September 2015
A new beamline offers unprecedented imaging capabilities for x-ray microscopy.
31 August 2015
Femtosecond optical pump–probe spectroscopy with hybrid metal–ferromagnetic nanostructures enables ultrafast control of their properties via nonlinear interactions.
28 August 2015
Nanostructured devices with discrete pixels exhibit photonic functions, enabling the smallest polarization beam-splitter to date.
27 August 2015
Upconverting nanoparticles are coupled with gold nanorods to achieve increased emission brightness, enhanced diagnostic strength, and improved determination of local temperature.
25 August 2015
A holographic optical-tweezers-based approach allows the fabrication of bacterial microsystems, such as fluid mixers or micro- and nanotransport vehicles for functional particles.
20 August 2015
Zinc oxide-coated alpha-phase ferric oxide particles can be used for water purification purposes.
13 August 2015
Lithographically patterned arrays of interacting, magnetic nano-islands provide a new material-by-design approach to nano-ferroics.
10 August 2015
Plasmonic metamaterial geometry may enable fabrication of an aluminum-based metamaterial superconductor with a critical temperature that is three times that of pure aluminum.
10 August 2015
Solvent-free transfer printing by a pick-and place-technique patterns and multi-stacks quantum dots on various substrates, enabling high-definition full-color displays and flexible optoelectronics.
4 August 2015
Raman spectroscopy can be used to measure small misalignment distances between top and bottom graphene layers.
31 July 2015
Production of 3D graphene scaffolds with micron-scale pores by lithography using UV lasers enables the design of carbon electrodes for advanced electrochemical applications.
25 July 2015
Field-effect transistors based on semiconductor nanowires can operate as fast and sensitive plasma-wave terahertz detectors that are versatile and easy to grow.
21 July 2015
A self-pulsing approach is used to modulate radiation pressure and achieve robust phonon lasing.
20 July 2015
Integrating plasmonic optical antennae with liquid crystal technology points the way to true 3D images.
8 July 2015
Cryoetching that minimizes plasma-induced carbon depletion was successfully tested on advanced low-k materials used in back-end-of-the-line CMOS technology.
7 July 2015
Novel photonic crystal design enables low-power-consumption, all-optical memory suitable for large-scale, dense integration.
29 June 2015
Chemical self-organization on silicon with gold nanoparticles assembles a nanostructure for a reproducible Coulomb blockade and opens the way for molecular single-electron nanoelectronics.
18 June 2015

Smart materials enable fabrication of lightweight, compact optical mirrors that can be replicated at low cost for use in large space telescopes.

12 June 2015
A novel quantum mechanical process in organic semiconductors that allows for the harvesting of spin-triplet excitons promises to enable high-efficiency solar cells.
9 June 2015
A nanohole optical tweezer technique probes the vibrations of individual nanoparticles, such as proteins, DNA fragments, colloids, and viruses.
29 May 2015
Placing a semiconductor nanowire in a trench in a line defect of a silicon photonic crystal creates a movable high-Q nanocavity.
28 May 2015
Phosphorene transistors and circuit units feature outstanding electrical performance and strong mechanical robustness.
21 May 2015
A novel transparent electrode embedded with silver-based nanoparticles enhances the light extraction efficiency of LEDs, improving device performance by 88%.
19 May 2015
The plasmonic-electrical effect can be used to shorten the transport path of low-mobility carriers and overcome the space-charge limit in organic semiconductors.
19 May 2015
A femtosecond laser writes 3D nanoscale photonic structures in a single step, overcoming material, dimensional, refractive-index, and wavelength constraints.
12 May 2015
Capillaries filled with brightly fluorescent quantum dots act as durable, inexpensive microfluidic biosensors.
11 May 2015
The use of a quantum dot enhancement film in LCDs enables the delivery of ultra-high color gamuts covering more than 90 of the color standard for ultra-high-definition TV.
5 May 2015
With its twisted, porous nanostructure, the helical nanofilament liquid crystal phase, otherwise known as the ‘B4 banana phase,’ could pave the way to more efficient organic photovoltaics.
27 April 2015
Silicon and germanium analogs of graphene offer tantalizing possibilities for novel nanoelectronic devices.
21 April 2015
Three-dimensional microstructures encrusted with 2D nanomaterials represent a promising platform for novel energy sources for implantable electronic devices such as pacemakers.
15 April 2015
Photonic hypercrystals combine the features of metamaterials and photonic crystals within the same medium, offering new ways to control electromagnetic radiation.
10 April 2015
The first graphene-quantum-dot LEDs made with high-quantum-yield nanodots obtained via graphite intercalation compound synthesis exhibit luminance in excess of 1000cd/m2.
7 April 2015
An energy gradient in the core-shell nanostructure of nitride semiconductors enables unidirectional light propagation and the generation of broadband white light.
2 April 2015
Controlling the assembly of nanoparticles into 3D structures using DNA-programmable methods enables the fabrication of superlattices with tailorable lattice constants for light–surface plasmon coupling.
1 April 2015
Laser-induced transfer technology can print very small and delicate objects for applications in nanophotonics and tissue engineering.
30 March 2015
Ultrafast carrier movements in 1D nanoscale devices, such as silicon nanowires and carbon nanotube transistors, can be visualized using femtosecond photocurrent microscopy.
22 March 2015
Nanosecond electric modification of the nematic order parameter can switch the optical properties of nematic liquid crystals with a nanosecond response time.
17 March 2015
Shaping the vacuum field in coupled nanophotonic cavities enables control over the spontaneous emission rate of quantum dots at a time scale of ∼200ps, far below the radiative lifetime of the quantum emitter.
11 March 2015
Optical vortices form submicron chiral polymeric reliefs with metal nanoparticle impurities for chiral plasmonics.
10 March 2015
The picture of vortex centers aids understanding of resonances with infinite lifetimes (optical bound states in the continuum) and shows how their robustness arises from their topological properties.
9 March 2015
Silicon nanoplasmonic waveguides accelerate ballistically, sweep and multiply electrons with ultrafast speed, and emit bright white light.
6 March 2015

Using focused light beams to suspend and autonomously control microscopic tools in 3D enables novel ways to investigate the microscale world.

3 March 2015
A method for creating Bose-Einstein condensates in polymers enables micrometer-scale observations of quantum physical phenomena at ambient temperatures.
26 February 2015
Graphene-covered metasurfaces enable the tunable enhancement of evanescent tunneling and wavelength-selective transmission for both near- and far-field thermal radiation.
24 February 2015
Exploiting optical modes generated at the surface of some metals or nanoparticles can enhance absorption, fluorescence, and Raman spectroscopy for sensing applications.
20 February 2015

A new structure of free-standing 1D porous silicon foils is configured to produce forces that are 500 times greater than conventional optical tweezers.

19 February 2015
Pulsed laser ablation of metals prepares ligand-free nanoparticles for colloidal deposition on a variety of surfaces.
16 February 2015
Nanostructured materials enable control over light propagation, absorption, and emission and enhance solar conversion efficiency when combined with luminescent solar concentrators.
10 February 2015
Tuning the near-surface band structure of group III-nitride nanowires using magnesium dopants leads to efficient and stable photocatalysts for solar water splitting.
9 February 2015
Photoelectrochemical water splitting using semiconductor electrodes with rough surfaces represents a promising route to the production of alternative fuels from sunlight.
28 January 2015
Diamondoid nanothreads, formed by the solid-state chemical reaction of benzene under pressure, could prove stronger and stiffer than conventional carbon nanotubes.
26 January 2015

An optical resonator coupled to a single atom enables a medium that provides the maximum nonlinear phase shift of pi at the single-photon level, offering new possibilities for quantum technology.

26 January 2015
Single-layer molybdenum disulfide, a strictly 2D semiconductor, exhibits negative photoconductivity caused by the formation of trions under optical excitation.
22 January 2015
Massive arrays of miniaturized electrospray emitters, individually regulated by carbon nanotube wicking structures, achieve high and uniform-array emission of ionic liquid ion sources.
19 January 2015
Two novel deformation carrier fabrication methods, using nanoimprint lithography and micromachine technology, respectively, enable the measurement of mechanical behavior under thermal shock.
13 January 2015
A novel artificial optical material combines the most interesting features of hyperbolic metamaterials and photonic crystals.
9 January 2015
Applying topological insulator concepts to excitonic materials shows how to create one-way robust exciton wires in porphyrin thin films.
6 January 2015
A new solid-state-like material contains nanocellulose capsules embedded within a matrix of nanofibers, and can operate for long periods in a dry oxygen-rich atmosphere.
31 December 2014
A label-free optical biosensing platform, capable of monitoring single DNA molecules and their interaction kinetics, achieves unprecedented sensitivity in the optical domain.
22 December 2014
A novel technique involves a deterministic material addition and removal method to enable sputtering of dual-phase materials.
18 December 2014
Oriented assembled 3D branched nanowire arrays produce electrodes with high surface area and rapid charge transport, and show effective charge collection for solar cells and energy storage devices.
17 December 2014

Combining metal oxides with organic lumophores results in an attractive form of solid-state lighting.

9 December 2014

Light propagation in honeycomb arrays of metallic nanoparticles mimics the properties of electrons in graphene, paving the way to unprecedented tunable optical materials.

3 December 2014

Inorganic nanostructures are used in hybrid solar cells to improve light absorption and carrier transportation.

21 November 2014

A meta-hologram consisting of sub-wavelength gold cross nanoantennas enables polarization-controlled dual images in the visible region.

18 November 2014

Direct femtosecond laser writing can produce computer-designed structures at a resolution beyond the diffraction limit.

5 November 2014

Membrane-wrapped gold nanoparticles designed to have specific surface properties have been used to investigate and mimic complex viral processes.

4 November 2014

A new technique using high-index glasses enables photonic device integration on substrates such as semiconductors, glasses, IR crystals, polymers, and graphene.

30 October 2014
Highly corrugated surfaces, nanoparticle assemblies, and superstructured multilayers offer superior functionality in controlling propagating volume plasmons with large wave vectors.
29 October 2014
Disposable free-form plastic prisms and common-path phase interrogation cut development costs.
23 October 2014
Novel designs enable nanoscale waveguiding, on-chip polarization handling, and energy-efficient thermal tuning.
16 October 2014

Diffractive arrays of metallic nanoparticles act as nanoantenna-phased arrays that enhance emission from thin phosphor layers in defined directions, and therefore offer new prospects for solid-state lighting.

7 October 2014
Using nanocrystal fluorescence in chiral photonic bandgap microcavities and plasmonic nanoantennas promises room-temperature sources of time-separated quanta of light.
1 October 2014

A simple and versatile synthesis platform enables the preparation of engineered hybrid spin-on materials and micro and nanostructured surfaces for fast and inexpensive development of miniaturized devices.

30 September 2014

Ordered lattices of nanostructures with unique electromagnetic properties not found in nature offer novel sensing possibilities for diagnosis, treatment, and management of disease.

30 September 2014

As researchers race to develop novel semiconductors that efficiently split water to produce hydrogen, nanotechnology is providing winning solutions.

23 September 2014
Spin-dependent spatial beam splitting in the photonic spin Hall effect is sensitive to variations in the thickness of metal and graphene nanofilms.
16 September 2014

High-performance photoresists made from metal oxide nanoparticles offer high-sensitivity lithography at extreme-UV wavelengths by using a new ligand-based patterning mechanism.

15 September 2014
Vertically oriented, radial PIN diodes based on non-polar and semi-polar gallium nitride could potentially enhance detector performance.
4 September 2014
Spatially engineering nitrogen impurities in zinc oxide nanostructured arrays decouples optical absorption and electron transport for photoelectrochemical activity.
21 August 2014
Dispersing nanostructured additives in common polymers makes these tough and versatile materials suitable for optical applications.
18 August 2014
Ultraviolet light and nanospherical-lens lithography together fabricate large-area nano-ellipse arrays.
30 July 2014
Membranes of phase-change materials are used to control radiative heat flow between two bodies in thermal analogs of field-effect transistors.
29 July 2014
Helium ion microscopy is able to produce gaps less than 5nm in width and narrow bridges in plasmonic nanostructures.
22 July 2014
Placing noble metal nanowires in microstructured optical fibers allows for the integration of plasmonics and fiber optics, leading to a novel kind of plasmonic excitation for near-field microscopy.
14 July 2014
A unique semiconductor manipulates light in the invisible IR/terahertz range, paving the way for new and enhanced electronic applications.
8 July 2014
The integration of photon-number-resolving detectors based on an array of niobium nitride nanowires into quantum photonic integrated circuits shows promise for future quantum computing applications.
7 July 2014
Metamaterials based on multilayered graphene structures offer new possibilities for control of the emission and transfer of terahertz radiation.
2 July 2014
Transformation optics and geometrical optics theories are used to design novel anisotropic devices.
2 July 2014
Surface plasmonic nanocircuits based on subwavelength slot waveguides can be electrically driven by plasmonic nanoscale LEDs, perhaps enabling photonic and optoelectronic devices.
16 June 2014
Understanding a variety of biochemical features and biological processes might enable the design of plasmonic particles that home in on tumors for imaging and therapy.
13 June 2014
Quantum confinement boosts excitonic optical emission into the visible range at green and cyan wavelengths tailored by nanowire diameter and cross-sectional shape.
12 June 2014
Novel functional materials enable a class of embedded sensors suitable for extreme conditions.
10 June 2014
Filter paper decorated with plasmonic nanostructures acts as a flexible surface-enhanced Raman scattering substrate for trace detection.
2 June 2014
Interband photoexcitation in monolayer graphene produces only a weak gain in the terahertz range, but exciting surface plasmon polaritons results in gain potentially large enough for terahertz lasers.
28 May 2014
Photovoltaic cells on silicon spherical microcavities trap IR light, increasing the probability of photon absorption and enhancing the efficiency of solar energy devices.
22 May 2014
A new nano-optical tweezer enables capture and analysis of individual proteins, as well as single-protein interactions with small-molecule drugs and with DNA.
22 May 2014
A double set of photonic crystal reflectors allow CMOS-compatible III-V/silicon vertical-cavity surface-emitting lasers a wide range of uses.
22 May 2014
Sub-wavelength light focusing and imaging—originally impossible using conventional optics—is demonstrated by exploiting multiple light scattering in complex media.
7 May 2014
An approach to creating microelectronic circuitry that relies on self-assembly of polymer materials can be used as a general technique for surface nanoengineering a host of different material types.
2 May 2014
Innovative structuring processes and surface engineering methods improve the optical and electrical properties of hybrid organic silicon solar cells, yielding better performance at lower cost.
14 April 2014
Combining three laser beams, including a doughnut-shaped beam, permits ‘super-resolution’ microscopy of nanostructures with the contrast of optical absorption.
7 April 2014
Group III-nitride semiconductor quantum dots on elongated pyramids enable direct generation of light with controllable polarization for imaging and display applications.
7 April 2014
Gigahertz-frequency mechanical waves directly drive spin transitions in nitrogen-vacancy centers, offering a new way to control spins, sense strains, and study spin-phonon interactions at the nanoscale.
2 April 2014
Crystalline nanostructures in coal

A fast, simple solution-based method extracts photoluminescent carbon dots from coal with up to 25% yield.

14 March 2014
Depositing metal nanoparticles onto nanowire channels offers cost-effective and reliable control of their electronic behavior.
10 March 2014
The peculiar propagation properties of electrons in graphene enable the creation of plasmonic transmitters, antennas, and receivers.
6 March 2014
A novel design, which involves an H-shaped sandwich structure, can efficiently convert propagating waves to surface waves.
24 February 2014
Superhydrophobic, low-cost plastic nanocones boost energy harvesting by photovoltaics, help them stay clean, and are easy to attach.
14 February 2014
Integrating a microwave reactor with a microfluidic platform reduces the synthesis time of nanoparticles to 64ms.
11 February 2014
Using atomic force microscopy, metallic and semiconductor nanoparticles can be combined into arbitrary geometries to shape electromagnetic fields and change the emission properties of single-photon sources.
7 February 2014
Surface and photon management with vertical nanostructures called nanopillars can increase the efficiency of photovoltaic technology.
7 February 2014
A novel grating fabrication technique based on nanoimprint lithography includes a composite stamp design with an optimized profile.
3 February 2014
A linearly tapered 3D metal–insulator–metal nanoplasmonic photon compressor reduces resistive and scattering losses, showing promise for future nanoscale photonic and plasmonic applications.
31 January 2014
A new imaging technique based on second harmonic generation can detect thickness, crystal orientation, and single-crystal domain size of novel 2D crystals.
29 January 2014
Novel artificial structures for controlling sound propagation in ducts could potentially have negative inertial mass and bulk modulus, making possible a new generation of devices for sound control.
28 January 2014
Photonic crystal nanocavity lasers with quantum dot gain directly generate coherent visible light via nanocavity-enhanced nonlinear optical frequency doubling.
24 January 2014
Sequential photon absorption processes in semiconductor solar cells represent a route to improving their efficiency.
24 January 2014
Highly uniform, rare-earth-based nanocrystals of various sizes and morphologies can be programmed to convert wavelengths throughout the spectrum, providing energy and information where needed.
21 January 2014
Nanostructures in wide-bandgap metal oxides could enhance light-trapping for solar energy technology and LEDs.
9 January 2014
Graphene/poly(vinylidene fluoride-co-trifluoroethylene) multilayer films enable the fabrication of transparent, flexible nanogenerators and acoustic devices.
7 January 2014
Transferring optical excitations between quantum nanostructures via near-field interactions occurring at scales below the wavelength of light can solve computationally demanding problems.
6 January 2014
Applying an electric field offers a low-cost, bottom-up approach to integrating suspended dielectric metal oxide nanowires in electronic devices.
27 December 2013
A new modal formalism provides an efficient and intuitive method to describe both light scattering by a resonant nanostructure and the Purcell factor of a nearby emitter.
19 December 2013
Ellipsometry of graphene reveals its optical properties, the effect of a water layer on its surface, and that a residue from wet transfer can significantly increase visible light absorption.
5 December 2013

Polymer-based opals with useful optical responses to a variety of external triggers can be fabricated on large scale, with increasing potential for a wide range of optical sensor applications.

3 December 2013
A hybrid material of plasmonic nanoparticles and photoactive molecules shows that hot electrons can be extracted from plasmons in molecular electronic devices.
2 December 2013
In addition to improving device efficiency, work on photovoltaics must focus on three aspects to be able to compete with fossil-fuel energy: material abundance, low cost, and high productivity.
27 November 2013
Thin-film solar cells achieve improved efficiency by incorporating radial junction silicon nanowire devices.
26 November 2013
Inverse design methods help find promising topologies that provide the functions required for all-optical networks.
22 November 2013
Plasmonically induced carrier generation and enhanced carrier extraction improve photovoltaic performance.
13 November 2013
A doughnut-shaped beam inhibits photopolymerization at the outer ring of a writing beam for nanometer-scale 3D fabrication and petabyte optical data storage. A two-beam strategy for optical lithography breaks the diffraction limit and provides the most powerful method for 3D fabrication at the nanometer scale.
12 November 2013
An array of split-ring resonators efficiently absorbs and re-emits thermal energy as IR radiation to power thermophotovoltaic systems.
4 November 2013
Confined Tamm plasmon modes in hybrid structures open perspectives for new optoelectronic devices.
28 October 2013
Recent progress in superconducting nanowire single-photon detector arrays is enabling advances in infrared photon-counting measurements and applications.
28 October 2013
A strongly focused laser optically levitates a single diamond nanocrystal while a second laser interrogates the diamond crystal's internal quantum states.
23 October 2013
A novel bulk metamaterial enables an optically switchable flat lens capable of imaging 2D objects beyond the near field.
21 October 2013

A nanosensor based on molecularly imprinted polymers and surface-enhanced Raman scattering provides an effective and robust chemical sensing platform for detecting explosive targets.

17 October 2013
Hierarchical structures are a cost-effective method of photon management.
17 October 2013
An inexpensive and scalable technique enables tailoring of nanopatterns and nanostructures on solid surfaces.
16 October 2013
Graphene-like 2D materials, such as the transition metal dichalcogenides, offer exciting properties for new technologies in photonics, sensing, and energy harvesting.
11 October 2013
Changing the location of excited quantum dots within a miniature spiral plasmonic antenna directs the emitted radiation.
3 October 2013
Integration of self-assembling Tobacco mosaic virus nanotemplates with microfabrication techniques produces 3D hierarchical electrodes for lithium-ion microbatteries with high power and density.
2 October 2013
Enhancements to the whispering-gallery-mode plasmonic biosensor enable a high level of sensitivity in detecting nanoscopic protein particles, with application to the early treatment of disease.
30 September 2013
Atomic force microscope probes generating microplasma deposits can etch and image quantum dots and lines on arbitrary surfaces to fabricate tunneling transistors.
30 September 2013
A gradient metasurface guides a 750–900nm wavelength incident beam to non-mirror-like reflection or a surface wave, controlled by the incident angle, with around 80% efficiency.
30 September 2013
Indium gallium arsenide nanowires grown directly on graphene spontaneously develop a distinct core-shell architecture, useful for a range of optoelectronic applications.
23 September 2013

Solar hydrogen production is enhanced by 200% by exploiting plasmon resonance in a photoelectrode composed of silver particles and zinc nanorods.

20 September 2013

Tuning 2D arrays of metal nanoparticles by atomic layer deposition accomplishes record absorption coefficients for visible light and promises substantial thickness reductions of solar cell absorber layers.

17 September 2013
Lensless imaging with focused x-ray beams enables high-resolution 2D and 3D observations of thick nanoscopic objects.
11 September 2013
Modern scanning electron microscopes have become very user-friendly, but better understanding of the imaging mechanisms is needed to ensure accurate, quantitative data.
4 September 2013
Multilayered graphene petal nanosheets enhanced with platinum nanoparticles and enzyme glucose oxidase can monitor the wide range of glucose concentrations found in saliva, tears, blood, and urine.
3 September 2013
Incorporating metallic plasmonic nanostructures in organic solar cells can dramatically increase their efficiency in converting light to electrical power.
29 August 2013
Nanowire components with the superior photovoltaic properties of III-V semiconductors can boost solar cell efficiency.
28 August 2013
Implementing a buried heterostructure with a wavelength-scale active region significantly reduces the operating energy of nanocavity lasers for short-range optical data transmission.
27 August 2013
Nanomaterials made of active fibers have the potential to become new functional components of light-emitting sources in the visible and near-IR range, lasers, and electronic devices.
26 August 2013
The demonstration of a 1D left-handed metamaterial waveguide for terahertz quantum-cascade lasers opens the door to new techniques for beam steering and shaping.
22 August 2013
Angular momenta of light can directly force an irradiated metal sample to form chiral nanoneedles.
21 August 2013
Plasmonic devices hold promise for building more-compact on-chip integrated circuits for optical information processing architectures.
13 August 2013
Electron microscopy imaging of extracted cross sections enables the correlation of high-resolution structural data with electronic property measurements for individual layers within graphene heterostructures.
12 August 2013
New photovoltaic cells made with graphene—single layers of carbon— coated with a layer of nanowires are light, flexible, offer high power conversion efficiencies, and can be deployed on a range of surfaces.
9 August 2013
A novel design simplifies fabrication of all-solid-state, ultrathin organic/inorganic photovoltaics with respectable efficiency.
8 August 2013
Harnessing acousto-optical interaction in nanoscale nonlinear circuits can strongly enhance stimulated Brillouin scattering, resulting in photonic integration of dynamic gratings.
6 August 2013
Spatially resolved electron energy-loss spectroscopy reveals collective phenomena of metallic nanoparticle arrays.
23 July 2013
The velocity of plasmons in graphene, obtained using time-resolved electrical measurements, can be tuned over two orders of magnitude, showing promise for application in nanoscale optoelectronics.
16 July 2013
Recent discoveries on the interaction of light with standing nanowires reveal their strong potential as building blocks for solar cells.
10 July 2013
Excitation of multiple surface-plasmon-polariton waves guided by the interface of a metal and a chiral sculptured thin film promises robust multi-analyte sensing capabilities with a single sensor.
9 July 2013
A new spectroscopic Mueller matrix polarimeter evaluation technique measures periodic structures and identifies surface defects.
8 July 2013
Quantum dot infrared detectors can be integrated on silicon using droplet epitaxy, enabling the simultaneous detection of multiple wavelengths in a format compatible with current semiconductor technology.
8 July 2013
Mesoporous silicon nanomaterials can be fabricated and biofunctionalized for in vitro and in vivo controlled drug delivery and theranostic applications.
1 July 2013
Interference lithography using extreme-UV light is a powerful, low-cost method with applications in both industrial and academic research, including photoresist screening and high-resolution patterning.
1 July 2013
Silicon atoms crystallize in bonding configurations that are similar to those in graphene, opening up the potential for exceptional electronic properties with possible applications in nanoscale electronics.
7 June 2013
A laser-triggered cavitation bubble shaped by a metallic nanostructure cuts a transient, micron-sized pore in the membrane of a living cell for large cargo delivery.
29 May 2013
Using inertial sampling, nanomechanical resonators can detect the concentration and individual mass of particles in the air and have the potential to become the next-generation portable mass spectrometers.
29 May 2013
Plasmonic dynamics exploit the optical properties of graphene to create a new type of terahertz solid-state laser.
28 May 2013
Previously challenging spectral blue-shifting of plasmonic metasurfaces is enabled by overlaying them with single-layer graphene, paving the way for next-generation tunable infrared optoelectronic devices.
28 May 2013
Photoexciting nanostructured metals and building a device that splits water into hydrogen and oxygen is a radically new way to convert sunlight directly into fuel.
24 May 2013
Synthesis of nearly defect-free monolayer graphene can be combined with silicon technology to create innovative next-generation electronic and optical systems and sensor devices.
21 May 2013
Size-separated and colloidally stable silicon nanoparticles provide a novel non-toxic light-emitting material for efficient, stable and color-tunable electroluminescence.
21 May 2013
Piezoelectric nanoribbons permit the electrical recording of cell's mechanical responses to electrical stimulation.
17 May 2013
A new 3D solid-state battery integrates high power and energy storage for electronic device, weapon system, and fuel-efficient vehicle applications.
17 May 2013
State-of–the-art laser-writing technology allows the creation of 3D photonic arrays for manipulating quantum photon states.
7 May 2013
Carrier doping in single-walled carbon nanotubes enables manipulation of their optical spectra and dynamics and provides a possible route toward quantum computing.
7 May 2013
Sensitive, low-cost silicon carbide-based gas sensors can detect toxic emissions and hazardous nanoparticulate matter in previously untenable environments.
1 May 2013
A new, dual-polarity lens made of metamaterials offers extra flexibility for focusing and imaging devices and may find application in integrated nano-optoelectronics.
26 April 2013
An electron beam lithography and plasma etching process enables hands-free folding of functional metal-patterned dielectric structures with nanoscale dimensions.
11 April 2013
Spectroscopic techniques can be used to estimate structural inhomogeneities in silicon oxide thin films.
2 April 2013
Control over the precise number of atoms in gold nanoclusters gives rise to distinct nonlinear optical properties, providing an attractive route toward optical limiting devices.
1 April 2013
The plasmonic properties of metal nanocrystals deposited on surfaces can be fine-tuned to enhance the performance of novel sensing platforms based on tilted fiber Bragg gratings.
22 March 2013
A thermal annealing-assisted template stripping method can be used to mass-produce high-quality gold nanostructures.
12 March 2013
The light-transmission behavior of photonic structures made with more than two materials holds great promise for applications such as filters, optoelectronic switches, and color-changing devices.
11 March 2013
Combining an atomic-size helium-ion-beam milling process with conventional electron-beam lithography makes it possible to carve graphene with an accuracy of one nanometer and an excellent yield.
11 March 2013
Light irradiation of a metallic nanostructure enables a novel thermoplasmonic optical tweezer for nanoparticles.
5 March 2013
Plasmonic enhancement of whispering gallery mode sensors can increase their sensitivity by more than two orders of magnitude.
21 February 2013
Scanning probe lithography provides a means of fabricating semiconductor devices only a few nanometers in size, raising the possibility of the practical application of electronic devices using quantum effects.
19 February 2013
Various blood biomarkers were screened for their ability to monitor nanoparticle neurotoxicity by analyzing bound proteins on their surface.
12 February 2013
Created using a single-reactor synthesis process, tunable chitosan-capped spiky gold/silver nanoparticles can be used to efficiently ablate cancer cells.
11 February 2013
Transparent, flexible, and highly conductive graphene films laminated with ferroelectric polymers could act as a simple, low-cost alternative to indium tin oxide conductive films.
6 February 2013
Experimental, computational, and analytic advances in nanophotonic light trapping promise the next generation of high-efficiency, low-cost photovoltaics.
1 February 2013

The first all-carbon solar cell was fabricated using carbon-based electrodes with an active layer composed of sorted semiconducting single-walled carbon nanotubes and C60 fullerene.

1 February 2013
LEDs built from nanopyramid arrays can deliver high luminescence efficiency over a very wide spectral range owing to reduced defects, relaxed strain, and a suppressed piezoelectric field.
30 January 2013
Hot-injection synthesis of copper indium sulfide produces suitable ink for printed photovoltaic devices.
18 January 2013
The efficiency of commercial solar cells can be significantly improved by using an energy down-shifting material on their front surfaces.
7 January 2013
Photoirradiation controls the release of molecules in the body that may inhibit tumor growth so therapy can be targeted to specific sites.
28 December 2012
Optical limiting tests on nanoparticles of different shapes found a mismatch between surface plasmon resonance absorption spectra and nonlinear transmission spectra.
18 December 2012
Transmembrane proteins that function as gateways to the cell interior can successfully transport ions against a chemical concentration gradient.
17 December 2012
Organic solar cells, when deposited with metal nanoparticles, offer an inexpensive alternative to silicon for energy generation.
14 December 2012
Liquid-crystal droplets are fragmented and moved to desired locations using electric fields generated by a thermal stimulus.
6 December 2012
Arbitrary 3D polarization orientation is used to excite surface plasmon resonance in gold nanorods, creating highly secure encryption 'keys.'
19 November 2012
Applying voltage to a centimeter-size, single-layer graphene device controls transmission of terahertz and mid-IR waves for potential novel applications in optoelectronics.
16 November 2012
High-efficiency triple-junction photovoltaics employing moth-eye-inspired nanostructures achieve broadband and omnidirectional harvesting of solar radiation.
15 November 2012
The absorption response and photoluminescence of a graphene oxide film are modified by using thermal annealing and oxygen plasma treatment to alter the ratio of sp2 to sp3 orbitals.
13 November 2012
Instruments for automated single-cell nanosurgery elucidate fundamental processes in biology, exploiting them in early detection and treatment of disease.
8 November 2012
A hybrid whispering gallery mode/plasmonic biosensor can detect and size the smallest known virus, so that no viral particle can evade detection.
2 November 2012
A nanoparticle-modified cover glass slip improves resolution of traditional optical microscopy beyond the diffraction limit.
30 October 2012
Applying a laser-direct-writing technique to the fabrication of split-ring-resonator-based metamaterials offers a straightforward alternative to complicated, time-consuming conventional approaches.
24 October 2012
Lightwave bending and manipulation by optofluidic transformation optics is a new way to innovate light-manipulating microfluidic devices with sophisticated tunability.
24 October 2012
A simple two-step ablation process with femtosecond laser pulses can fabricate a nanograting with deep grooves on a gallium nitride surface.
24 October 2012
Laser ablation of an ‘imaging’ polymer layer allows near-field mapping of metal nanostructures with subdiffraction resolution.
11 October 2012
The optical performance of rare-earth-doped oxyfluoride glass-ceramics with nanocrystals smaller than 20nm suggests that these materials have a promising future in optics and photovoltaics.
9 October 2012
Direct modification of surfactant allows magnetic nanoparticle stabilization in water and attachment of different biomolecules in a single step.
27 September 2012
Craig BarrettThe former chairman of Intel weighs in on the Optics and Photonics report from the National Academies.
10 September 2012
Bottom-up soft matter self-assembly coupled with pulsed laser irradiation directs the growth and organization of single-crystal epitaxial inorganic nanomaterials.
22 June 2011
Combining photolithographic and optical-disc manufacturing techniques produces low-cost microfluidic and surface-plasmon-resonance devices for biological and chemical analyses.
15 June 2011
Electric signals generated in graphene-based nanofilms at 260-5000nm reproduce the temporal profile of their laser excitation pulses and open promising avenues for the development of ultra-broadband fast sensors.
NaN January 2007
Successful nanofabrication of daisy-like surface topologies for development of novel plasmonic sensors was accomplished.
24 September 2012
Novel radiation detection concepts are generated by doping both conventional and nanoporous scintillators with triplet-harvesting molecules.
18 September 2012
Sculptured thin films are nanoengineered to meet the requirements of a variety of applications such as optical filters, sensors, and waveguides by exploiting controllable porosity, 3D periodicity, and chirality.
14 September 2012
Densely packed thin films of colloidal quantum dots provide a new type of optical gain medium for lasing across the entire visible spectrum.
13 September 2012
A new type of system can potentially image rare circulating tumor cells with simultaneous non-invasive detection at a flow rate twice that of a human radial artery.
11 September 2012
High-frequency radiation generated by nanofocusing packets of energy is opening the door for novel applications involving high-resolution near-field microscopy and lithography.
6 September 2012
Excitonic coupling between simple molecular units can be exploited to achieve materials optimized for two-photon absorption without requiring difficult synthesis of more complex molecules.
6 September 2012
The superior capability of graphene to limit electronic energy from being dissipated within the lattice makes it a fast photon detector with unprecedented sensitivity.
24 August 2012
Gain media have been efficiently integrated into the fabric of nanoplasmonic metamaterials, removing losses and enabling ultrafast light sources at nanoscopic dimensions.
16 August 2012
Using stimulated Brillouin scattering at chip scale can drastically reduce light pulse speed, opening opportunities for tunable delay and microwave signal processing, and possibly novel photo-phononic devices.
13 August 2012
Enhanced room-temperature photo- and electroluminescence of gallium antimonide quantum rings, formed by arsenic-induced dot-to-ring transitions show potential for optical device applications.
10 August 2012
Hybrid solar cells of silicon nanowire and poly(3,4-ethylene-dioxythiophene):polystyrenesulfonate have been fabricated using only a thin layer of epitaxial silicon absorber on a silicon substrate.
7 August 2012
Carbon-nanotube-based transistors made using a new deposition technique interact selectively with different gases and thus provide an "electronic fingerprint" for gas detection.
26 July 2012
A simplified architecture for blue phosphorescent organic LEDs integrates internal light-extraction structures and uses small nanoparticles to smooth forward transmittance.
23 July 2012
A monolayer of graphene can be used to control the optical absorption in a silicon-based waveguide, inspiring a new category of optical modulators.
23 July 2012
A new molecular template permits nano-engineering of soft matter materials to optimize optical and optoelectronic properties.
17 July 2012
Aperiodic arrays of nanoparticles provide novel opportunities to manipulate and enhance light-matter interaction.
16 July 2012
A combination of surface analysis techniques and in situ cluster ion slicing can be used to show the link between nanostructures and properties of organic electronics.
16 July 2012
Our investigations into electrical nanomanipulation of magnetic states demonstrate spontaneous magnetic, thermal, and electric oscillations at controllable frequencies.
12 July 2012
V-shaped antennas afford a degree of freedom over their linear counterparts, making unconventional light manipulation possible through the variation of the angle between their arms.
9 July 2012
Combining a quantum dot dispensing technology and UV-reflecting mirror enables wafer-scale full-color light sources for displays.
6 July 2012
Introducing quantum degrees of freedom opens new ways to control light-matter interaction in artificial structures.
19 June 2012
Novel combinations of zinc oxide and gallium nitride offer enhanced efficiency, lifetime, and spectral coverage for next-generation optoelectronic devices.
15 June 2012
Attaching plasmonic nanoparticles to the surface of an optical biosensor can enhance its sensitivity by several orders of magnitude and might enable real-time detection of single-molecule binding events.
1 June 2012
Simulations of differentially oriented split-ring resonator arrays irradiated by visible light indicate induction of magnetic multipoles, opening up new avenues for high-capacity data storage.
1 June 2012
A localized surface plasmon resonance (LSPR) sensor-based analytical platform can be used to study the chemistry of individual catalyst nanoparticles under industrial conditions.
23 May 2012
Liquid inks made of quantum dots show promise for a number of uses, including biological fluorescent markers, precursor inks for roll-to-roll solar cells, and now IR detection.
15 May 2012
Light trapping in thin-film photonic crystals provides new avenues for higher-efficiency solar energy harvesting.
10 May 2012
Improved performance for silicon slot waveguides and photonic crystal cavities is achieved with atomic-layer-deposited thin films.
8 May 2012
Gold (I) and (III)-precursor-doped silica matrices enable fast direct writing of reproducible nanoparticle arrays in 2D or 3D depending on the wavelength of the laser used.
8 May 2012
Coaxial electrospinning produces a self-supporting micro/nanofiber electronic light source.
30 April 2012
Effective non-invasive control of neural activity can be achieved with optically excitable quantum dots, tiny semiconductor particles nanometers across.
30 April 2012
A new approach to creating 3D optical cavities by exploiting the photosensitivity of chalcogenide glass is demonstrated, allowing monitoring during fabrication and dynamic tuning of optical properties.
19 April 2012
Mechanically polished nanoscale graphite particles directly imprinted on a fiber end-face can passively mode-lock an erbium-doped fiber laser for ultrafast optical applications.
16 April 2012
Nanosphere and regular photolithography can be combined to fabricate periodic arrays of photonic crystal nanostructures.
11 April 2012
Metal-assisted chemical etching is capable of producing high-aspect-ratio III-V semiconductor nanostructures.
10 April 2012
Super-resolution imaging based on nanometer topographical contrast is used to monitor the activities of cancer-cell filopodia in response to external electric stimuli.
5 April 2012
Two complementary laser-based nanofabrication techniques can be combined through a simple adjustment to a single setup.
3 April 2012
Researchers have developed a solar cell made from colloidal quantum dots that, for certain wavelengths, collects more electrons than photons incident on it.
26 March 2012
When thin films made from different types of carbon nanotubes are exposed to electromagnetic radiation in the range of 0.1–2THz, the response reveals the effects of surface defects on the optical and electrical properties.
23 March 2012
Continuously metallic metamaterials can be frequency-selective, providing a means to engineer the color of uncoated metal surfaces.
22 March 2012
Ultrasmall silicon-on-insulator nanowire-based photonic integrated devices for use in optical communications and optical sensing are characterized.
19 March 2012
Interference effects and photosensitive materials provide a simple method to fabricate a variety of periodic nanostructures.
14 March 2012
Harnessing LightStakeholders hope that the forthcoming study provides a shot in the arm for awareness and funding.
14 March 2012
Hexagonal-like copper surfaces grow the best graphene, important for industrial use and high-performance electronics.
12 March 2012
The unique transmission properties of micro- and nanostructured materials, combined with mature fiber-optics technology, enable novel ultra-compact, multifunctional sensor arrays.
7 March 2012
Prism-assisted one-step exposure UV lithography and holographic lithography enable easier fabrication of micro- and nanoscale 3D and 2D photonic crystals.
6 March 2012
A nanoscale platinum thermal detector with a simple design has promising properties for sensing near- to mid-infrared radiation.
5 March 2012
A new platform for controlling active photonic crystal cavities has enabled record fast, low-power lasers, LEDs, and modulators.
28 February 2012
Surfaces of graphitic superconducting sheets exhibit charge-density waves, suggesting a potential data-storage mechanism.
27 February 2012
Gold nanoparticles enhance photocatalytic water splitting on titanium oxide by acting as electron traps and creating surface plasmons.
24 February 2012
A novel integrated device that enables optically pumped lasing at room temperature has promise as a viable light source for silicon photonics.
21 February 2012
A particular example of few-layer graphene shows unexpected electronic properties, such as band-gap opening, related to the order in which the sheets are stacked.
15 February 2012
Rare earths are critical for optical polishingThe cost and availability of these important materials have had their ups and downs. The optics industry is using several strategies to make sure future needs are met.
9 January 2012

Integrating highly efficient energy conversion materials onto stretchable and biocompatible substrates could yield breakthroughs in implantable biomechanical energy harvesting systems.

21 July 2011
Nanogenerators made from zinc oxide can power small electronics with energy made from tiny motions.
8 July 2011

A unique collaboration between UC Santa Cruz and NASA Ames Research Center enables academia, industry, and startups to access laboratory resources.

9 June 2011
An analytical model describes interactions of plasmonic nanoresonators with quantum objects.
2 June 2011
The generation, propagation, and detection of single surface plasmon polaritons enables optics experiments at unprecedented subwavelength scales.
1 June 2011
Piezoresistive Wheatstone bridges allow acquisition of a variety of data in extreme environments.
27 May 2011
A new ‘microscopic’ approach provides an analytical description of optical-light propagation in artificial materials with a fishnet structure.
26 May 2011

A new way of interconnecting nanometric light-sensitive elements allows detectors to span areas up to 40 x 40µm2 without compromising the count rate.

26 May 2011
Self-assembled nanostructures offer rapid, reversible tuning over the entire visible spectrum using external magnetic fields.
5 May 2011
Scanning probes with low force constants and integrated sharp tips enable fast visualization of small features in the subnanometer regime.
2 May 2011
Multifunctional architectures are synthesized cost-effectively and efficiently.
26 April 2011
Photonic crystals comprised of ordered arrays of pores and columns can serve as color-changing blast badges to detect shockwave contact.
25 April 2011
Complex nanoparticle assemblies containing quantum dots and chemotherapeutics promise simultaneous imaging and targeted drug delivery in cancer therapy.
20 April 2011
By using nano- and micro-fabrication techniques, four different sensing principles are combined to increase the sensitivity and reliability of a handheld explosives sensor.
18 April 2011
An analytical assay detects Category A and B bioterrorism agents.
18 April 2011
The combination of modular architecture and a four-part control framework simplifies and quickens instrument design for nanotechnology systems.
14 April 2011
Optics and electronics are merged on the nanoscale to facilitate introduction of biomimetic principles in nano-optics.
5 April 2011
Using stimulated emission depletion microscopy and other techniques, Stefan Hell explores new ways to examine living cells noninvasively.
1 April 2011
Zinc oxide nanorod arrays enable mechanical power generation and force sensing in solar cells.
31 March 2011
A new chemical-analysis technique uses the shifting, ultrasonic pitch of a small quartz crystal to determine the composition of samples of only a few micrograms of material.
25 March 2011
Light-irradiated metal nanoparticles or chromophores can produce localized chemical or physical effects on (sub)cellular structures.
18 March 2011
Subwavelength metallic slits can manipulate the shape of light, with potential application in optical interconnections and data storage.
10 March 2011
Discovery of extremely efficient photocurrent generation through hole transfer at individual heterojunctions could provide a breakthrough for development of high-efficiency hybrid photovoltaics.
9 March 2011
Selected combinations of narrow-emitter nanophosphors, made of colloidal quantum dots, are integrated into LEDs to achieve photometrically efficient white light sources.
8 March 2011
Plasmonic nanoholes as optical and fluidic structures enable faster detection by increasing analyte transport.
28 February 2011
Zinc oxide nanostructures are suitable for sensitive and selective detection of extra- and intracellular metallic ions and other biological analytes, as well as for photodynamic therapy for cancer-cell treatment.
28 February 2011
Ordered silver nanowire thin film can be used to improve chemical imaging devices deployed on planetary rovers that are searching for alien life.
23 February 2011
Chromium impurities engineered in diamond dramatically advance the state of the art of photostable single-photon emission, paving the way for their deployment in emerging fields.
18 February 2011
Gas molecules that absorb infrared photons can reduce the incidence of out-of-band radiation at 10.6μm in extreme ultraviolet exposure tools that use a carbon dioxide drive laser.
18 February 2011
Implanting metal ions into elastomers creates highly stretchable electrodes for tunable optics, beam steering, and cellular manipulation.
17 February 2011
Nanowire arrays enable rapid screening of the photoresponse of new materials.
14 February 2011
Nanostructured light-emitting devices can be produced using nanosphere lithography and application of the chemical-mechanical polishing process.
10 February 2011
A novel imaging system based on a form of visual-light photon scattering provides real-time views of biological samples.
10 February 2011
Nanosensor devices made from metallic oxides can be used for breath analysis and disease diagnosis.
10 February 2011
Audio recordings and slides from plenary presentations at SPIE Photonics West 2011.
7 February 2011
Light-emitting nanofibers fabricated by a low-cost, high-throughput method are novel building blocks for integrated photonics.
4 February 2011
Modification of the photon-mode density by metallic nanoparticles enables changes in the luminescence intensity and lifetime of rare-earth ions.
30 January 2011
A new approach to fabricating nanomaterials combines molecular recognition with self-assembly to synthesize materials comprised of ordered, nanostructured functional features.
20 January 2011
Multi-walled carbon nanotubes and single-walled carbon-nanotube bundles can replace copper interconnection wires in very-large-scale integration circuits.
17 January 2011
Arrays of plasmonic nanogratings can transmit light with selective frequencies and polarization in the visible band.
14 January 2011
Condensing and aligning metal nanorods in a fluid is a useful technique in fabricating reconfigurable metamaterials for applications such as invisibility cloaking and solar-energy collectors.
14 January 2011
The significant limitations to optimization of left-handed metamaterials are currently inspiring attempts to devise alternative approaches to achieve a negative-index response.
13 January 2011
A new approach to growing indium nitride nanowires has produced nearly intrinsic indium nitride and opens the way to novel optoelectronic devices.
7 January 2011
Metallic planar lenses offer advantages over refractive nanolenses, including the ability to focus using small structures, ease of fabrication, and a focal point in the far field.
7 January 2011
IR-sensor performance can be improved by integrating a carbon-nanotube structure with a photonic crystal.
5 January 2011
Carbon nanotubes serve as building blocks for lead-free, conductive polymer composites and oil/water-separation membrane filters.
30 December 2010
By exploiting a favorable soft-matter interaction, gold nanoparticles can be dispersed at an unusually high concentration.
30 December 2010
New capabilities at the College of Nanoscale Science and Engineering are aimed specifically at bridging the gap between academic research and introduction into manufacturing.
27 December 2010

Training more high-school physics teachers and increasing student learning are two of the challenges facing math, science, and engineering education in the United States.

17 December 2010
An ‘insulating’ organic shell between inorganic magnetic nanoparticles and an organic semiconductor matrix enhances the efficiency of advanced light technologies in several ways.
16 December 2010
A microneedle with a height greater than 10μm and a diameter less than 0.3μm is formed by deposition of only a few laser pulses onto a metal.
16 December 2010
Harmonizing nanotechnology material spectral properties, environmental energy flows, and human needs has applications in cooling of buildings, urban environments, and, ultimately, the earth itself.
16 December 2010
Metallodielectric photonic crystals can produce a range of new linear and nonlinear phenomena.
10 December 2010
Increasing conversion efficiencies and the ability to store and transport energy are two of the goals of organic and hybrid solar cell development.
9 December 2010
A new method enables transfer of graphene onto arbitrary substrates that are preferable for device fabrication and materials characterization.
6 December 2010
Strong light-matter interaction of photons and quantum-dot excitons confined in a photonic-crystal nanocavity enables lasing oscillations.
6 December 2010
Ordered and disordered nanostructures with broadband antireflection properties can be used in solar cells, LEDs, and transparent glasses.
30 November 2010
A new hydrodynamic model suggests that as their radius increases, the semiconducting and metallic conductivities of carbon nanotubes become comparable.
29 November 2010
A fracture-transfer-print technique enables integration of multilayer semiconductor devices for efficient portable electronics applications.
22 November 2010
Calculated operating parameters for a novel design of a reed switch (based on cantilevered nanotubes filled with magnetic endofullerenes) show the feasibility of room-temperature operation at 100mV applied voltage.
19 November 2010
The high performance and low-temperature processability of inkjet-printed single-walled carbon nanotube thin-film transistors augur well for their use in flexible electronics.
17 November 2010
Near-IR spectro-electrochemistry reveals the oxidation and reduction potentials, bandgaps, Fermi levels, and work functions of isolated carbon-based nanostructures with different chirality indices.
16 November 2010
Titania nanocomposites, which combine element doping and quantum-dot sensitization, can significantly improve photoactivity.
15 November 2010
Doped semiconductors offer an alternative to conventional metal-based solutions in advancing practical application of plasmonic technologies, including subwavelength optical imaging.
10 November 2010
Quantum walks of correlated photons open up possibilities for new experiments in quantum-information science.
4 November 2010
The ability of gold nanoparticles to act as efficient pointlike sources of both light and heat promises integrated functionalities for future point-of-care diagnostics and cancer therapies.
2 November 2010
A novel surface-enhanced Raman-scattering substrate shows superior performance over its conventional planar counterpart thanks to a unique nanoporous nanostructure.
27 October 2010
The bandgap widths of a 1D photonic crystal can be tuned in a variety of ways, depending on the types of mechanisms incorporated in the device design.
19 October 2010
Carbon-based nanomaterials are being used to develop robust, affordable fiber lasers.
14 October 2010
A microscale, solid-state system can be fabricated to produce a radiation detector that promises to achieve an efficiency of 50%.
12 October 2010
Photodetectors employing vertically etched silicon nanowires show broadband absorption down to the near-IR regime because of strong interactions with surface effects.
7 October 2010
Fine-engineered, tiny noble-metal particles can be used for targeted color imaging of cancer cells and potentially for therapy.
7 October 2010
Spatiotemporal control of optical near-fields takes adaptive optics and dynamic-light localization beyond the diffraction limit and potentially into new information-processing devices.
4 October 2010
Engineering microdroplet shapes enables new designs of 2D microlenses, which would normally require sophisticated metamaterials.
30 September 2010
Full control of fast, high-density, nonvolatile data-storage devices enables reliable injection, motion, and positioning of domain walls.
24 September 2010
Novel plasmonic biodetection systems enable ultrasensitive biomolecular studies for early disease detection and treatment.
21 September 2010
Rare-earth fluorescent nanophosphors upconvert from near-IR to visible wavelengths to provide bright, low-noise images.
17 September 2010
Membrane-projection lithography enables fabrication of true out-of-plane resonators at a 3D resolution of tens of nanometers, and can be scaled to full-wafer processing.
8 September 2010
Controlling the dimensions of semiconductor nanowires influences the scattering and absorption of light, potentially leading to solar cells with reduced scattering or enhanced absorption.
3 September 2010
Antenna resonances play a crucial role in the operation of a metallic carbon nanotube probe in a scanning near-field microscope.
2 September 2010
Reversible, controlled creation of patterns of topological defects in liquid crystals is achieved using focused beams with optical phase singularities.
23 August 2010
Combining suitable nanomaterials and unconventional fabrication techniques marks a step forward in realizing less expensive, smaller-footprint, all-optical circuits on a chip.
23 August 2010
A new, seamless, sample-to-answer technology (high-conductance dielectrophoresis) enables rapid analysis of high-molecular-weight DNA clusters and drug-delivery nanoparticles based directly on whole blood.
19 August 2010
Portable optical devices capable of real-time, in situ sensing and characterization of individual nanoparticles and pathogens could offer unprecedented benefits in a range of applications.
9 August 2010
Future medical tests can be performed four times faster by modifying the supporting substrates of nano-electronic biosensors.
8 August 2010
A novel solid-state, subwavelength laser characterized by efficient, enhanced spontaneous emission and thresholdless operation represents significant progress toward nanoscale coherent light sources.
29 July 2010
High photocurrent densities are possible with hematite photoelectrodes using only inexpensive, scalable processing techniques.
27 July 2010
State-of-the-art, triple-junction, quantum-dot-enhanced photovoltaic devices exhibit increased output current and increased efficiency.
26 July 2010
Whether as used for circuitry for displays and detectors or oxidized to produce emissive materials, graphene promises to advance photonics
22 July 2010
Exploiting the versatility of nanoparticles results in more effective light-based destruction of tumor cells than can be achieved using conventional phototherapy approaches.
16 July 2010
Demonstrations of photonic quantum-information science, including an integrated circuit that can factorize the number 15, promise applications on a feasible scale.
12 July 2010
Matching integral multiples of lattice planes provides a new paradigm for epitaxy across the ‘misfit’ scale that promises to increase the scope of materials for smart devices.
8 July 2010
Gold nanorods are emerging as a powerful solution for various minimally-invasive biomedical applications, including laser bonding of connective tissues.
7 July 2010
Fast screening of antibody-secreting cells by extraordinary optical transmission could be a new mechanism for drug discovery.
6 July 2010
Electronic excitation of particles in fluorescent materials can now be controlled using laser-assisted energy-transfer techniques.
23 June 2010
New fabrication methods and measurement techniques enable development of nanoscale bimorph actuators.
23 June 2010
Silicon-based nanostructures enable a wide range of cheaper, faster, and more efficient devices.
16 June 2010
Chemical grafting of carefully chosen conducting particles to a dielectric elastomer can enhance physical changes that occur when a voltage is applied.
15 June 2010
A novel approach using ambient-light irradiation can produce twisted nanostructures of variable pitch length with many potential applications.
15 June 2010
Narrow-bandgap quantum dots emitting at IR wavelengths may be ideal materials for solar-energy harvesting.
10 June 2010
Increased performance can also be achieved for photon-sensing devices such as photodetectors and thermo-photovoltaic devices.
2 June 2010
Selective, reversible alteration of optical properties can be achieved by applying a small voltage to photonic crystals.
2 June 2010
Self-powered, integrated systems-on-a-chip are key to developing extremely low-power devices for applications in commercial, defense, space, harsh-environment, and medical settings.
26 May 2010
A novel, molecular self-assembly technique produces almost perfectly shaped plano-convex optical lenses for high-quality imaging that surpasses the fundamental resolution limit of a regular optical microscope.
20 May 2010
An optical nanostructure based on single-crystal nanowire diamond may be used as an efficient source of single photons.
18 May 2010
Efficient and significant field-intensity enhancement at telecommunications wavelengths using near-field microscopy opens up exciting perspectives for practical applications of nanofocusing.
26 April 2010
A novel microfluidic chip produces single-molecule containers with high precision, facilitating studies of chemical reactions at the lowest possible reagent levels.
12 April 2010
Optical data routing beyond 100Gb/s is now possible with a new generation of power-efficient, all-optical wavelength converters.
6 April 2010
Incorporating nanoparticles made of dielectric rather than plasmonic materials reduces parasitic absorption and results in more efficient silicon photovoltaics.
31 March 2010
Carefully positioned potential barriers suppress photocarrier capture by quantum dots.
29 March 2010
Novel organic-inorganic composites improve the current density of photodetection and photovoltaic devices.
26 March 2010
Nanoscale metamaterials enable development of novel nano-optical lenses.
19 March 2010
Microspheres inside capillaries or hollow waveguides permit compact focusing of light from multimodal sources.
12 March 2010
Recent advancements in nanopillar arrays lead to more cost-effective photovoltaics.
10 March 2010
Fabrication of nanoscale sensors with robust capabilities is streamlined by site-specific synthesis, self-assembly, and integration of nanostructures into two-terminal micro-nano systems.
1 March 2010
A new class of remarkable materials are much smaller and more tunable than their ordinary metamaterial counterparts, which enhances their practical potential.
15 February 2010
Novel solid-state emitters and detectors exploit electronic-charge vibrations to improve the operating frequency of devices intended for safety and security applications.
15 February 2010
Inserting indium arsenide quantum dots into crystalline III-V semiconductor-based photovoltaics results in both enhanced short-circuit current and improved efficiency.
8 February 2010

Nanoscopy with Focused Light - Stefan Hell plenary presentation from SPIE Photonics West 2011

31 January 2010
Controlling the size of quantum dots produced in situ for multi-color luminescent polymers and silver particles can fabricate luminescent polymers and nanoscale metal structures.
20 January 2010
Efficient light trapping using localized surface plasmons in metal nanoparticles depends critically on optimizing particle properties.
7 January 2010
Novel materials exploit the favorable transfer of energy between metal nanoparticles and polymer molecules to sidestep problems that have been holding back all-optical-based technologies.
30 December 2009
A novel approach that notably improves the photophysical properties of fluorophores enables development of advanced biomedical applications.
22 December 2009
Distance-dependent coupling of plasmon resonances between closely spaced metal nanoparticles offers an attractive approach for imaging molecular interactions.
18 December 2009
A novel light source and integrated photonic device can manipulate, sort, and select complex semiconductors and/or nanoparticles.
16 December 2009
Integration of biological molecules into nanoelectronic devices promises new, sophisticated biointerfacing technologies.
9 December 2009

Communication between organizations is key to developing a coherent set of regulations to address known and unknown nanotech risks.

2 December 2009
Chemical-free metal nanoparticles do not aggregate in water, even if they are not stabilized by surfactants.
30 November 2009
Plasmonic lenses can be made extremely small to enable integration into focal-plane array detectors for full Stokes-parameter polarimetric imaging.
17 November 2009
3D images projected from a ferroelectric liquid-crystal-over-silicon microdisplay - SPIE NewsroomA new type of liquid-crystal device has been fabricated to generate a tunable, graded refractive index across the depth of each pixel.
26 October 2009
Using light to inject a single nanosized biosensor into a mammalian cell enables analysis of its biochemistry.
20 October 2009
The exceptional flexibility and diversity of artificial media make it possible to adjust their properties on the fly, with potential practical use in areas such as sensing and switching.
8 October 2009
Laue scattering of visible light with an internal refractive-index contrast of less than 1% shows that kinematic-scattering theory is applicable.
30 September 2009
Single atoms mediate interactions between modes of light, making optical quantum computing possible even without using single photons or nonlinear optics.
23 September 2009
High-quality, compound semiconductor nanowires can be fabricated using metalorganic chemical-vapor deposition with gold nanoparticles as catalysts.
21 September 2009
The favorable properties of polymer electrolytes made from natural products render these materials good candidates for application in optoelectrochemical devices.
14 September 2009
New silica-nanoparticle-doped multistable LCDs offer fast response times in dynamic and multistable modes.
4 September 2009
With wavelength tuning of the light source, the action of a DNA-based nanomachine is accelerated as much as ten times and achieves a repeatable operation with high transition efficiency.
1 September 2009
An optical-quantum-circuit entanglement filter can pass a pair of photons with the desired polarization correlations.
26 August 2009
Doughnut-shaped laser beams hold promise for touch-free, selective catching, holding, and transporting of absorbing particles in the air.
19 August 2009
A new family of coating systems provides self-decontamination against dust and biological pathogens for future space exploration.
18 August 2009
The former president of MIT spoke at the SPIE Optics + Photonics Symposium Awards Banquet.
13 August 2009
Infiltrating the air holes of a lattice with liquid enables construction of thermally stable resonant devices.
12 August 2009
A method for identifying key gas-detection mechanisms correlates reactions at the semiconductor surface with changes in electrical conductivity.
11 August 2009
Metal complexes reacting in common organic solvents at a relatively low temperature can generate homogenous structures in a large variety of controlled shapes and sizes.
7 August 2009
Incorporating crystalline nanoparticles in tunnel junctions dramatically reduces electrical and optical absorption losses in solar cells, as well as mid-IR and telecommunications lasers.
24 July 2009
A novel nanoparticle-tracking technique provides a simple and direct qualitative view of a sample.
22 July 2009
A spin-dependent topological deflection of classical light propagates along a smooth helical trajectory.
20 July 2009
Characterizing how nanoparticles affect organs and accumulate in tissue may provide insight into their safety as a potential cancer therapy
15 July 2009
Ultra-secure quantum cryptography is realized through the wave function collapse of coherent photons.
15 July 2009
Interfering femtosecond lasers induce arrays of nanoliquid metals, enabling the creation of mesoscopic materials on >7nm scales.
10 July 2009
Surface nanoparticles of zinc metal and bulk zinc and oxygen vacancies are produced by irradiation of single-crystal zinc oxide with 193nm excimer-laser light.
6 July 2009
Nanostructured composites absorb light and manipulate a fundamental property of surfaces to generate locomotion of objects on liquids.
2 July 2009
A new class of photonic-crystal fiber with a hollow core and various lattice modifications may be an important component for biosensing applications.
30 June 2009
Room-temperature lasing in cavities with a mode volume of 0.017μm3 and a high quality factor is achievable.
30 June 2009
Oblique-angle deposition, an industrial workhorse technique, has been used to deposit silver thin films that should refract negatively in the visible regime.
23 June 2009
Sub-Angstrom-resolution sensing of tiny cantilevers is leading the way to a gentle physical probe for surfaces of materials such as living cells.
19 June 2009
Harnessing the oscillation of electrons on conductor surfaces can effectively enhance the performance of organic photovoltaic cells.
17 June 2009
A new system offers an affordable and versatile alternative for applications requiring actuation and sensing at very small resolution.
16 June 2009
An extreme-high-resolution instrument is opening up new possibilities for industrial and research applications, expanding what was previously thought possible.
10 June 2009
Reflection can be greatly reduced by graded refractive-index layers fabricated in a simple, scalable process.
10 June 2009
Top SPIE Newsroom articles from the previous month, and papers from SPIE Journals and Conference Proceedings.
9 June 2009
Multiscale simulations, including nonclassical effects, predict a fundamental scaling limit for micro-electromechanical systems.
5 June 2009
A dedicated finite-element solver enables accurate and fast simulations of light interaction with metallic nanostructures.
2 June 2009
Hybridizing plasmonic structures with optically nonlinear material may enable the creation of an optical analog to the electronic circuit.
2 June 2009
An advanced simulation supports semiconductor manufacturing and facilitates the development of new patterning techniques for micro- and nanodevices.
27 May 2009
Frameworks with adjustable nanoporosity, high surface area, and many known structures may pave the way for portable, low-cost chemical sensors.
19 May 2009
Careful selection of molecular contributors as well as control of bonding strength and geometry will lead to new engineering approaches to create organic molecular devices and materials.
14 May 2009
Acid etching followed by vapor texturing has the potential to reduce reflectance and improve the efficiency of nanostructured photovoltaics.
12 May 2009
Laser light can induce binding or repulsive forces between particles and thus facilitate manipulation of nanoparticle arrays.
8 May 2009
A single semiconductor quantum dot that is strongly coupled to a photonic crystal nanocavity yields optical nonlinearities at the single photon level.
30 April 2009
Novel copper electrodes offer high electrical conductivity and optical transparency, which facilitate low-cost, high-performance organic photovoltaic production.
16 April 2009
Reliable mass spectrometers developed for spaceflight instruments could benefit future terrestrial applications.
16 April 2009
Progress in the fabrication, assembly, and manipulation of nanotubes and graphene-based materials promises many technological advances.
8 April 2009
Even after multiple applications of sunscreen, the UV-blocking particles remain localized close to the skin surface and produce insignificant numbers of free radicals.
23 March 2009
Research on cellulose nanocrystals may provide a viable alternative to other reinforcing fibers in commodity fiberthermoplastic composite materials.
17 March 2009
Simulating the way light travels in objects with refractive indices below unity allows rendering of complex, lifelike scenes.
12 March 2009
A carefully patterned metal surface may strongly localize microwaves, thus enabling novel microwave-technology developments.
12 March 2009
Electrophoretic deposition of multilayered structures of carbon nanotubes and nanocrystals produces nanomaterials containing homogeneous films with sharp interfaces.
10 March 2009
Pillared graphene provides a stable architecture for enhanced fuel storage.
8 March 2009
A commonly used subwavelength component of metamaterials can excite unusual electric and magnetic properties and enable nanophotonic applications
5 March 2009
The electronic properties of nanowires can be improved by making them from novel materials rather than carbon.
25 February 2009
Vertically self-aligned, GaN nanorod arrays grown by plasma-assisted molecular-beam epitaxy demonstrate properties with important implications for optoelectronic applications.
17 February 2009
Networks composed of single-crystalline nanowires and nanoparticles of zinc and titanium oxides can form innovative photoanodes to enhance performance of dye-sensitized cells.
15 February 2009
A new class of remarkable materials are much smaller and more tunable than their ordinary metamaterial counterparts, which enhances their practical potential.
15 February 2009
A chip-scale optomechanical system with extremely low dissipation might enable the observation of quantum behavior in tangible objects visible to the naked eye.
13 February 2009
Columnlike liquid crystals can be applied as small, lightweight sources of power for vehicles and mobile devices.
13 February 2009
Near-IR fluorescent dye encapsulated in calcium-phosphate nanoparticles maintains enhanced brightness for up to four days in human breast-cancer tumors systemically injected into live mouse models.
9 February 2009
Plasmon coupling facilitates detection of direct contacts between optically colocalized gold nanoparticles in optical wide-field microscopy.
9 February 2009
A comparison of electron-energy-loss measurements and optical spectroscopy shows that both are required to access the full dielectric surface-plasmon behavior of nanoparticles.
3 February 2009
Use of a photoresist material and a low-fluence excimer laser can pattern carbon nanotubes cleanly and inexpensively.
2 February 2009
New 1D laser designs and improved physical insights can potentially lead to development of the smallest lasers.
30 January 2009
See-through fish embryos help to demonstrate the advantages of an integrated approach in testing how small particles can alter living organisms.
23 January 2009
Employing a top nanolayer characterized by a high refractive index increases the electromagnetic field at the sample interface and, correspondingly, sensor responsiveness.
21 January 2009
Position-controlled growth of nanoarchitectures through the selective formation of nanowalls represents a critical advance in fabricating high-performance nanodevices.
20 January 2009
Metal-reducing bacteria can construct electrically conductive networks using semiconductive nanominerals.
20 January 2009
Optical trapping and manipulation of carbon nanotubes using optical tweezers leads to next-generation photonic force microscopy.
19 January 2009
A water-resistant surface inspired by the lotus leaf could enable applications in microfluidics, underwater coatings, and controlled deposition.
19 January 2009
Tiny nanotube sensors promise advances in scanning technology and offer new interfaces to the physical world.
15 January 2009
A single electron spin in a semiconductor nanostructure, which serves as a single quantum bit, is manipulated in a few picoseconds using optical pulses.
12 January 2009
Carbon-nanotube doping of liquid-crystal layers results in much faster response times.
30 December 2008
Ferroelectric nanotubes that produce intense, high-frequency emissions may lead to new medical, military, and security devices.
28 December 2008
3D-metrology is becoming mandatory for nanofabrication in the production environment.
4 December 2008
Varying the input power can tune materials to be either transparent or opaque at microwave frequencies.
3 December 2008
Integration of highly sensitive photonic biosensors and microfluidic technologies provide new possibilities for molecular diagnostics.
3 December 2008
The controlled growth and alignment of carbon nanotubes and peptide nanoarrays offers new avenues for nanodevice fabrication.
1 December 2008
A reflection grating written on a novel, all-solid, silica-based fiber with a 2D core offers advantages over previous devices.
1 December 2008
Quantum-dot nanoprobes enable real-time quantitative noninvasive assessment of epidermal growth-factor receptor in animals transplanted with human cancer cells.
24 November 2008
A liquid phase process for making defect-free graphene in high yield could pave the way for superfast transistors.
24 November 2008
By raising the temperature in tumors, optically activated nanoparticles can make existing treatment more powerful.
17 November 2008
Using solar power to derive hydrogen from hydrogen sulfide could reduce pollution and generate renewable energy.
17 November 2008
Novel surface-plasmon-polariton wave behavior at the planar boundary of a metal and a sculptured thin film could lead to advanced applications in chemical detection and nanoscale circuits.
12 November 2008
New polymers with tailored optical properties show promise as coatings for commercial electronic components.
5 November 2008
The creation of homogeneous functional thin films is greatly improved using a single chemical compound to control film growth.
31 October 2008
Nanocomposites synthesized from different combinations of nanoparticles and matrix materials demonstrate notably increased strength, thermal stability, and electrical conductivity.
31 October 2008
Observing surface-texture evolution of nanocrystalline films in situ using reflection high-energy electron diffraction aids in creating novel nanostructures.
20 October 2008
Nanoparticles doped with lanthanides such as holmium and thulium possess useful optical properties for a range of applications including computer displays, lasers, and bioimaging.
15 October 2008
The conformal-evaporated-film-by-rotation technique generates synthetic, faithful replicas of biological structures, with broad potential application.
13 October 2008
The future of large-scale PV is likely to bring development of inexpensive thin film and nanostructured devices and processes. This video interview with the person who coined the term "plasmonics" explores the prospects -- and the urgency -- for developing new photovoltaic approaches.
6 October 2008
A theoretical analysis considering quantum confinement of ‘holes’ in nanowires points to a useful tool for future-generation nanoscale electronics.
2 October 2008
Novel coatings composed of carbon nanotubes embedded in cadmium arachidate matrices improve the robustness and performance of fiber-optic chemical sensors.
21 September 2008
Novel optical coatings enable cost-efficient, quick, and convenient analysis of contaminants in drinking water using miniature sensing equipment.
15 September 2008
A new 3D computational approach constructs realistic optical phase contrast microscope images of gold nanoparticles in biological cells.
19 August 2008
A multi-layer configuration yields blue quantum-dot LEDs with qualities that are comparable to red and green ones, thus facilitating applications in full-color displays and solid-state lighting.
14 August 2008
The low optical reflection from nanowire arrays could be exploited to improve the photon absorption efficiency of solar cells.
8 August 2008
Adding a special lens between an object and a conventional optical microscope can improve image resolution to below the diffraction limit at visible wavelengths.
1 August 2008
Nerac analyst Jerry Burke looks at some recent patents involving the use of nanomaterials in optical devices.
16 July 2008
Nanoelectromechanical switches based on carbon nanotubes hold significant promise for use in high-frequency and extreme-environment applications
14 July 2008
Do the permittivity and permeability of thin metamaterial layers actually measure polarizations in the structure?
11 July 2008
The detonation of silica-gold nanoshells at energy levels safe for normal tissues and their unprecedented low threshold for vapor bubble formation in solution highlight an advance in cell-killing nanotechnology.
11 July 2008

The second generation of nanotechnology research will involve creating predictive models for the safe use of nanoparticles.

1 July 2008
Exquisite control over an anodically formed TiO2 nanotube array architecture, large internal surface area, and lower recombination allows for low-cost high-efficiency hybrid inorganic-organic solar cells.
20 June 2008
Storing light inside solid-state materials may speed up communication networks and information processing.
20 June 2008
A theoretical investigation of aperture systems sheds light on the interplay between geometrical parameters and physical phenomena, and the accessibility of several potential new applications in optics.
12 June 2008
Organic nanowires self-assembled in situ and integrated into polymer LEDs double the device performance without complicating fabrication.
12 June 2008
Multiple wavelengths emitted by a semiconductor laser can be used as independent channels for simple and affordable high-bandwidth parallel optical interconnects in photonic integrated circuits.
9 June 2008
Ultra small cavities can be fabricated in a silicon ridge waveguide with quality factors in excess of 60,000.
2 June 2008
Pairs of nanopatterned metallic ellipses form antennae that couple optical radiation with localized excitations and enhance fluorescence, with possible applications including biosensing and optoelectronic integration.
23 May 2008
On-wire lithography is a new nanofabrication technique that can be used to design functionalized nanowires for both encoding and biosensing applications.
23 May 2008
A layered photonic crystal structure enhances nonlinear optical properties of a dopant dye.
22 May 2008
A new method of construction that permits short wavelength lasing could lead to light sources suited to a number of sophisticated scientific and engineering applications.
15 May 2008
DNA-based materials possess unique electromagnetic and optical properties and may lead to improved performance for organic-based devices.
15 May 2008
Dipolar solvents may improve the morphology of organic polymer junctions and increase the efficiency of low-cost photovoltaic materials.
13 May 2008
The new class of contrast enhancement agents can be precisely tuned to aid in vivo photoacoustic tomography.
12 May 2008
Atomic clocks are capable of measuring time with a precision of one part in a billion or greater. Nerac analyst James Marie looks at recent patent activity.
8 May 2008
A nanostructured optical system based on polaritonic crystals and a liquid crystal layer can modulate light transmission up to 100Hz.
5 May 2008
Optical fibers with bending loss several hundred times lower than standard single-mode fibers reduce installation costs for applications in multi-dwelling buildings.
21 April 2008
Semiconductor quantum dots integrated in nano-cavities exhibit atom-like properties that can make them useful for the design of functional quantum information networks.
15 April 2008
A carbon-nanotube field-effect transistor reliably detects single-electron events at a relatively high temperature of almost 150K.
15 April 2008
Nano-engineered devices could enable energy-conversion efficiencies on par with bulk silicon technologies, with a cheaper manufacturing process.
9 April 2008
The high spatial resolution of cathodoluminescence helps to provide information about inhomogeneities in semiconductor-based nanowires.
9 April 2008
Microchambers in photostructurable glass enable the dynamic observation of aquatic microorganisms.
7 April 2008
The artificial atomlike properties of self-assembling quantum dots enable high-operating-temperature long-wavelength IR focal plane arrays.
3 April 2008
A silicon microring resonator based on shifts induced by the thermal nonlinear effect shows promise for managing delays in data transmission with minimal distortion.
1 April 2008
Energy from sources such as body movement or blood flow is converted to electrical energy by deforming piezoelectric semiconducting nanowires.
25 March 2008
The surprising pattern of luminescence from a zinc oxide nanowire has significant implications for light-matter interaction and optoelectronic applications.
13 March 2008
Highly efficient carbon nanotube field-effect transistors employing scandium contacts could help usher in the next generation of nanoelectronic devices.
13 March 2008
Cathodoluminescence can be used to investigate resonant plasmonic phenomena with unprecedented resolution of mode excitation.
13 March 2008
A new Raman spectroscopy technique reveals both the chemical composition and spatial resolution of nanomaterials.
12 March 2008
A new strategy for designing optical fibers enables coverage of a wide frequency range with the potential to generate ultrashort pulses.
3 March 2008
Biomolecular motors enable active transport in biology, potentially making possible active materials capable of rearranging their components, or even molecular conveyor belts and forklifts for manufacturing at the nanoscale.
27 February 2008
Optical approaches provide robust and relatively non-invasive methods for excitation and detection of the motion of micro- and nanomechanical structures.
25 February 2008
A stationary tomosynthesis mammography system with a carbon nanotube-based x-ray source array can shorten imaging time and improve image quality.
20 February 2008
Single-wall carbon nanotubes improve the performance of organic photovoltaics and could bring them closer to practical implementation.
13 February 2008
Manipulating radiation with metamaterials is becoming possible at ever-higher frequencies. From SPIE Professional, January 2008.
8 February 2008
Nanophotonics has huge application potential in medicine, provided that concerns about toxicity can be addressed.
5 February 2008
Nanozeolites incorporated into photopolymerizable holographic recording materials can be used for holographic sensing, data storage, and optical systems design.
5 February 2008

Improvements in LED brightness and efficiency have brought many applications of solid-state lighting out of the lab and into the real world. What will it take to get them into homes and offices?

30 January 2008
Analogs of diffractive and refractive optics in free space can be developed to manipulate surface plasmon waves.
30 January 2008
Quantum-mechanical calculations can provide fundamental insights into structure for improving organic devices and molecular electronics.
30 January 2008
Femtosecond pulse technology can isolate and penetrate embryonic cells for delivery of nanoparticles and DNA.
28 January 2008
Exploiting the unique properties of mass-producible photonic crystals could lead to more efficient and accurate biological assays.
27 January 2008
Arranging carbon nanotubes in arrays of bundles creates high-performance electron-field-emission sources that enable smaller instruments for space and defense applications.
27 January 2008
A combination of simulation and experiment seeks a way to control the unfortunate tendency of carbon nanotubes to stick together.
27 December 2007
Applying a voltage to a computer-generated hologram recorded in a polymer and liquid crystal composite creates a fast, switchable vortex light beam for advanced applications.
27 December 2007
Optimization of annealing conditions significantly increases the short-circuit current density of nanotube-based solar cells.
19 December 2007
In-situ polymerization methods can be used to fabricate highly functional composite materials for applications ranging from flexible electronic devices to wearable e-textiles.
11 December 2007
Optical control of individual electron and nuclear spins in a diamond host can be used to construct scalable quantum computers, repeaters, and quantum memories, with much achievable at room temperature.
10 December 2007
Irradiating carbon nanotubes with an electron beam provides clues to how they form and provides an alternative route for generating them.
3 December 2007
Self-assembled quantum dots embedded in microcavities show strong room-temperature photoluminescence.
29 November 2007
The nonlinear optical properties of dispersions of single-walled carbon nanotubes make them attractive for use in laser-protective eyewear.
27 November 2007
Theory-guided definition of key structure and function relationships has dramatically improved the performance of organic nonlinear optical materials.
20 November 2007
Laser- and nanoparticle-based processing methods enable high-resolution, maskless fabrication of inexpensive large-area flexible electronics on polymer substrates.
13 November 2007
When combined, nanoassembly and microlithography prove effective techniques for making very flexible cantilevers using carbon nanotube composites.
28 October 2007
New strategies have been developed for producing crystalline nanostructures that emit strongly in the near infrared for nanoscale optoelectronic platforms.
25 October 2007
Bringing a nanoscale tip into the evanescent near field of a nanocavity shifts the resonance and allows switching of photon transmission.
18 October 2007
Gate-dielectric breakdown in field-effect transistors depends not only on the gate dielectric but on the electrode materials and the overall structure.
17 October 2007
The ordering of carbon nanotubes in polymer hosts can significantly increase charge mobility in photovoltaic devices.
30 September 2007
The synthesis of silver colloid particles with controlled size significantly increases the application range of surface-enhanced Raman spectroscopy.
23 September 2007

Early diagnosis increases the likelihood of effective cancer treatment. Nanotechnology offers several ways to improve patient outcomes.

14 September 2007

Simple methods have been developed for large-scale synthesis and micropatterning of highly aligned carbon nanotubes for various applications.

10 September 2007
Digital processing for rapid pattern-matching with sub-pixel accuracy can enhance a wide variety of vision-based systems for measurement applications.
5 September 2007
Perovskite mixed oxides with exceptionally high specific surface areas can be fabricated for use as efficient catalysts in a wide variety of chemical applications.
4 September 2007

Harold Szu discusses wellness engineering and how technology developed for the military can help monitor diseases such as diabetes.

16 August 2007
Dispersively engineering photonic crystal structures provides tight control for new devices.
15 August 2007
The transparency and versatile chemistry of nanocolloids can be exploited to fabricate novel thin films.
15 August 2007
Synchrotron radiation-based spectroscopic techniques provide information about the characteristic electronic structure of nanostructured materials.
15 August 2007
Transmission enhancement is possible through a broad range by tailoring to desired resonances.
15 August 2007
A novel optical diffractive element can be exploited to achieve super-resolution in 3D.
14 August 2007
An electrochemical, solution-phase process deposits a controlled thickness, non-covalent layer of silica dielectric on carbon nanotubes.
8 August 2007

Reza Ghodssi discusses the MEMS Sensors and Actuator Lab at the University of Maryland, microfabrication technologies, and chitosan.

7 August 2007
The latest featured patent review by analysts from Nerac examines some new work with nanorods in optoelectronic material technology.
6 August 2007
A new and simple method of growing multiwalled nanotubes significantly enhances their conductivity.
31 July 2007
Offering possible advances in everything from computing to spectroscopy, plasmonics represents a powerful technology.
16 July 2007
Colloid chemistry methods represent a powerful and versatile tool for fabricating gold nanoparticles with well-defined sizes and shapes.
16 July 2007
A new structural model accounts for the curvature inherent in their cylindrical shape.
11 July 2007
Illuminating a non-symmetric quantum well with circularly polarized light in the terahertz spectral region causes a spin-polarized electric current.
10 July 2007
A paradigm shift in production methods for optical waveguides could make the technology more cost-competitive.
10 July 2007
Nanometer-sized gold particles interacting with electromagnetic fields, fluids, and biological objects can be visualized using a specialized imaging technique combined with dark field microscopy.
4 July 2007
New materials exhibit a broadband optical limiting response that can be used to protect human eyes, optical elements, and sensors from intense laser pulses.
21 June 2007
Femtosecond laser writing and films of carbon nanotubes combine to create a 1.5μm mode-locked waveguide laser that provides 1.6ps pulses.
29 May 2007
The structures produced may be useful for a variety of applications, including lab-on-a-chip devices and optical storage of information.
24 May 2007
Automatic deposition of copper from nanotubes with attogram precision enables the joining of building blocks for nanoelectronic circuits and nanoelectromechanical systems.
23 May 2007
An ultrathin organic self-assembled monolayer gate dielectric enables low-leakage transistor fabrication on a wide range of substrates.
20 May 2007
Photonic crystals that enhance the interaction of light and matter achieve the low driving voltage desirable for on-chip applications.
18 May 2007
Simple fabrication of controllable periodic void structures is applicable to optoelectronics areas such as 3D photonic crystals.
16 May 2007
Attractive antireflection coatings made from nanostructured materials could open the door to more efficient solar cells, much brighter light-emitting diodes, and more.
11 May 2007
Carbon-based nanostructures are potential H2 storage devices for automotive applications due to their light weight and useful mechanical and chemical properties.
4 May 2007
An atmospheric monitor based on a microcantilever device coated with a reactive metal measures exposure to low levels of corrosive gases.
4 May 2007
Highly hyperpolarizable and blue-light-emitting nanofibers have been generated from chemically engineered functionalized quaterphenylene molecules.
4 May 2007
A new material could be used both to help regenerate damaged bone and as a reservoir for controlled drug release.
3 May 2007
Incorporating gold nanoparticles into viral protein provides a tool for studying viruses.
5 April 2007
The noted researcher in biomedical optics discusses new imaging techniques involving nanotechnology, plasmonics, and the use of molecular sentinels for biosensing and diagnostics.
27 March 2007
In this video interview, the display industry analyst talks about recent development, growth, and challenges in the application of solid-state devices.
22 March 2007
Direct attachment of carbon nanotubes makes silicon substrates conduct even in the presence of a normally insulating oxide layer.
22 March 2007
Laser gas analyzers are an efficient way to study variations in gas-exchange processes between vegetation and the atmosphere under anthropogenic stress.
20 March 2007
Laser-induced explosion of absorbing nanoparticles, so-called nanobombs, can kill cancerous cells.
20 March 2007
A new technique can immobilize and stretch a large number of DNA molecules for single-molecule DNA analysis applications.
15 March 2007
Quantum dots self-assembled into an array enable light to be transmitted in submicrometer widths over straight and 90°-bend waveguides.
28 March 2007
New photodynamic cancer therapies combine the tumor detection and imaging capabilities of nanoparticles with the increased penetration depth of infrared two-photon excitation.
27 February 2007
Low-cost zinc oxide nanoparticle-based electroluminescent devices with UV emission can be fabricated using a spin-coating method.
21 February 2007
Varying pH makes it possible to control conformational changes of polymer chains attached to stimuli-responsive interfaces.
19 February 2007
In this video interview, the Nobel laureate professor talks about his interests in a wide range of scientific fields.
15 February 2007
A new method has been developed to fabricate microtube resonators with strong whispering-gallery-mode emission and quality factors up to 3000.
15 February 2007
Harnessing quantum interference enables single aromatic annulene molecules to function as transistors.
15 February 2007
Combining two types of interferometry reveals in-plane motion with subnanometer resolution.
14 February 2007
Dynamic holography reveals the Casimir force between two metallic bodies, and can exploit light pressure to measure its absolute magnitude.
12 February 2007
A newly developed nanorobotic manipulation system allows the fabrication of an IR detector with high sensitivity and low noise.
1 February 2007
Experiment validates the theoretically predicted high-frequency performance of carbon nanotube field-effect transistors.
31 February 2007
Combining time-resolved photon counting, scanning optical techniques, and atomic force microscopy provides new tools for single-molecule investigations.
30 January 2007
Solid-state organic photoelectrochemical cells eliminate handling, portability and packaging problems encountered with liquid-based cells.
29 January 2007
Structures based on antimonide III-V semiconductor quantum dots can provide communications lasers on inexpensive substrates.
25 January 2007
Nanowires grown on a variety of substrates by a vapor-liquid-solid catalytic method point the way to easily commercializable lighting applications.
11 January 2007
The high circulating intensities in ultrahigh-Q optical microresonator sensors improve their sensitivity enough to detect a part per million of heavy water in water.
8 January 2007
A light antenna effect being exploited by nanotechnology has already been demonstrated in the Cecropia moth.
21 December 2006
In dense arrays of quantum dots, carrier transfer between dots affects the recombination kinetics, and thus the behavior of diode lasers and amplifiers that use such arrays.
13 December 2006
Analysis of the dispersion of electromagnetic waves propagating through finite-thickness charge sheets determines when they can be approximated by zero-thickness conducting interfaces.
12 December 2006
Manipulating nanoparticles dispersed in a photopolymer syrup proves a versatile method of fabricating high-performance holographic data storage media.
12 December 2006
Microscale approaches to depositing liquids on surfaces are suitable both for making biomolecule microarrays and as tools for rapid prototyping.
12 December 2006
Tip-enhanced Raman spectroscopy and microscopy reveal localized strain and its spatial variation at crystal surfaces.
28 November 2006
Simulations reveal that the dispersive properties of photonic-crystal structures can create chip-scale optical sensors to detect chemical, biological, and gaseous agents.
15 November 2006
By adjusting the composition of thin films, particularly the elements used for doping, these materials can detect gases with high sensitivity.
1 November 2006
Nanodots self-assemble along a groove in a substrate to create a far/near-field converter for nanometer-scale photonic integrated circuits.
1 November 2006
Substrates for sensitive surface-enhanced Raman spectroscopy are made from nanorod arrays prepared by oblique angle deposition.
1 November 2006
An LED fabricated with biomolecular materials may signal the start of biomolecular electronics.
31 November 2006
Low-temperature solution chemistry, combined with the right conditions, can create high-quality straight, bent, and branched nanowires.
26 October 2006
Real-time detection of nanoparticles and cells, including cancer, is now possible in blood and lymph flow.
23 October 2006
Lithographically defined top gates on carbon nanotubes create quantum dots isolated by tunable tunnel barriers that can serve as a building block for quantum computers.
19 October 2006
Confocal microscopy in combination with higher-order laser modes can detect and distinguish individual metallic nanoparticles from a single scattering image.
16 October 2006
Tilted-drop casting creates densely packed, uniaxially aligned, carbon nanotubes that can form the semiconducting layer in thin-film transistors.
12 October 2006
Hybrid nanocrystal/polymer solar cell performance can be improved by tailoring the component compositions to optimize donor and acceptor band levels.
12 October 2006
Modern imaging techniques can reveal the surface structure and electrical characteristics of individual metal-oxide nanowires during nanodevice operation.
12 October 2006
Adding nanostructured inorganic semiconductors to organic polymers can produce efficient, flexible, and potentially inexpensive devices.
29 September 2006
New techniques for incorporating nanostructures into hybrid nanoporous/microporous silicon allow both enhanced chemical sensors and efficient microreactors.
26 September 2006
By cutting brittle materials when they can bend as they break, monocrystalline silicon wafers can be produced more easily.
19 September 2006
A new computational approach can fully account for the effects of quantum and dielectric confinement.
19 September 2006
Metallic nanoparticles possess unusually vibrant optical properties, offering a wide range of potential applications.
12 September 2006
Nanocrystals and nanowires for use as active elements in electronic and optical applications can be created using novel, solution-based synthetic methods.
11 September 2006
Enrichments of up to 80% can be achieved quickly and simply through the preferential oxidation of semiconducting nanotubes.
4 September 2006
Coating the surface of a fiber optic with polymeric nanofilms proves a means to highly sensitive, rapid-response humidity sensors.
16 August 2006
Optimizing a recently discovered quantum dot effect that gets multiple electrons from photons could make a critical difference in photovoltaics.
10 August 2006
Researchers combine photonics and nanotechnology to improve drug development and disease detection.
8 August 2006
The bandgap photoluminescence of single-walled carbon nanotubes can now be translated into a structural description.
8 August 2006
A rotating technique that connects nanowires to a silicon chip could enable rapid advances in integrated circuits to continue.
3 August 2006
Optical modeling applied to thin-film solar cells can be used to optimize their existing structures, detect limits in efficiency, and devise novel improvements.
31 August 2006
A new band-gap tuning technique that uses selective-area epitaxy can fabricate waveguides and self-assembled indium-gallium-arsenide quantum-dot lasers on the same substrate in one step.
27 July 2006
The flow of liquid crystals enables precise manipulation of hard-to-handle micro-objects such as microlenses and micromirrors.
16 July 2006
Controlled thermal interdiffusion was used to fabricate a two-color InGaAs/GaAs quantum dot IR photodetector with 0.8μm-offset peak responses.
11 July 2006
Extended x-ray absorption fine structure can be used to measure local structural properties in nanomaterials, such as bond lengths and their disorders.
10 July 2006
New reagents and techniques in cell biology make it possible to visualize cell-signaling mechanisms in real time.
9 July 2006
Modeling IR photonic bandgap materials and structures reveals the best defect configurations.
7 July 2006
The results of an investigation into the excitation, propagation, and detection of surface plasmon polariton modes, at scales less than 100nm, have been applied to a biochemical sensor.
22 June 2006
Understanding how nanostructured materials deform is vital to developing small-scale materials with tailored properties.
12 June 2006
Polymeric molecules that expand and contract with temperature are used to connect assemblies of nanoparticles, exemplifying nanoscale devices that can be used as probes for measuring temperature in fluids.
12 June 2006
Focused-ion-beam-assisted deposition is used to make a new kind of electrical contact to wires just tens of nanometers in diameter.
8 June 2006
A highly sensitive ZnO nanowire field-effect sensor has electrically controlled sensitivity, refreshability, and distinguishability.
8 June 2006
The dispersive properties of photonic crystals can be used to fabricate compact devices with a wide range of potential applications.
6 June 2006
Lines of bismuth, just 1.5nm wide, can be used as templates for fabricating the nanowires and nanocluster arrays that could eventually make up nanoelectronic devices.
2 June 2006
An innovative bio-inspired approach has achieved a strong attachment between polymer sheets and the ceramic films using a buffer nanolayer.
26 May 2006
Ordering nanomaterial structures within a conducting polymer host provides a means of controlling the charge balance needed to create truly efficient plastic solar cells.
19 May 2006
Interrogating the vibrational modes of nanoparticles with time-resolved optical spectroscopy allows the accurate determination of their elastic constants.
17 May 2006
Nano-antennas, designed to detect light in the visible, IR, and beyond, may be used in polarimetric imaging systems, optical sensors, and other applications.
5 May 2006
A prototype chemical device can perform micro-stirring, pH measurement and control, and even the sensing of single molecules.
1 May 2006
A layer-transfer process can be used to make the very-flat silicon micromirror arrays that may be vital to producing masks for future lithography and direct-writing systems.
27 April 2006
Nanochannels with diameters from 15nm to 100nm were fabricated and used to isolate the fluorescence signal from a single molecule.
27 April 2006
The liquid/solid interface provides an ideal environment to investigate self-assembly phenomena and to probe the structure and properties of monolayers at the nanoscale.
26 April 2006
By using a thermally-induced change in the host structure, the operating wavelength of nanoplasmonics can be reversibly tuned.
26 April 2006
Using morphological and electronic design techniques, low-threshold, high-emission current densities have been obtained with ZnO.
21 April 2006
Recent advances in modeling the unique optical properties of nanoparticles and nanocomposites pave the way for designing and modeling coatings.
20 April 2006
Electrically conducting plastics and nanoparticles aid simultaneous measurement of the activity of many genes.
19 April 2006
Nano-textured substrates can be used to trap sunlight and couple it into thin-film silicon solar cells.
12 April 2006
Photonic-crystal waveguides that significantly slow light have been exploited to make a silicon modulator with an interaction length of 80μm and a peak drive current of less than 150μA
10 April 2006
The synthesis of inorganic materials has been revolutionized by the impact of (soft) chemical approaches that allow us to precisely tune the composition, morphology, and microstructure of the extended solid-state materials produced.
6 April 2006
Synthetic oligonucleotides, engineered to self-assemble into periodic 2D arrays, could serve as templates for the fabrication of nanostructures.
3 April 2006
Films of heavily-doped conducting polymers allow novel optical devices to be fabricated in the THz spectral range.
1 April 2006
Developing low-cost broadband semiconductor IR sources that could enhance the performance and resolution of OCT systems.
1 April 2006
Nanostructured compound materials are attracting increasing interest from scientists in fields as different as physics, materials science, chemistry, and biology.
7 February 2006
A new microchip analyzes thousands of cells per minute in an enclosed microfluidic environment.
7 February 2006

Three-dimensional photonic crystals have properties that may make them useful for sensing physical strain.

7 February 2006
Material properties limit silicon's usefulness in electro-optic modulators unless combined with other materials. This article describes a way to do this, paving the way for more effective silicon electro-optic modulators.
6 February 2006
DNA can be used to template the assembly of nanowires and nanoswitches from nanoparticles, enabling the next generation of electronic technologies.
2 February 2006
In-situ small-angle x-ray scattering experiments show how nanocrystals can self-assemble to form highly ordered super-lattices at the liquid-air interface of an evaporating droplet of fluid.
1 February 2006
From oemagazine November/December, 2005.
31 January 2006
From oemagazine October, 2005
30 October 2005
From oemagazine October, 2005
30 October 2005
From oemagazine September 2005
31 September 2005
From oemagazine August 2005
31 August 2005
From oemagazine April 2005
1 April 2005
From oemagazine April 2005
31 April 2005
From oemagazine February 2005
31 February 2005
From oemagazine February 2005
31 February 2005
From oemagazine February 2005
31 February 2005
From oemagazine January 2005
1 January 2005
From oemagazine November/December 2004
31 November 2004
From oemagazine November 2004
31 November 2004
From oemagazine October 2004
30 October 2004
From oemagazine October 2004
30 October 2004
From oemagazine September 2004
31 September 2004
From oemagazine June 2004
31 June 2004
From oemagazine May 2004
30 May 2004
From oemagazine December 2003
30 December 2003
From oemagazine October 2003
30 October 2003
From oemagazine July 2003
30 July 2003
From oemagazine May 2003
30 May 2003
From oemagazine February 2003
31 February 2003
From oemagazine February 2003
31 February 2003
From oemagazine October 2002
30 October 2002
From oemagazine October 2002
30 October 2002

From oemagazine August 2002

31 August 2002
From oemagazine July 2002
30 July 2002
From oemagazine July 2002
30 July 2002
From oemagazine June 2002
31 June 2002
From oemagazine May 2002
30 May 2002
From oemagazine March 2002
28 March 2002
From oemagazine February 2002
31 February 2002
From oemagazine January 2002
31 January 2002
From oemagazine December 2001
30 December 2001
From oemagazine September 2001
31 September 2001
From OE Reports Number 196 - April 2000
31 April 2000
From OE Reports Number 195 - March 2000
29 March 2000