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All Technical Articles - Nanotechnology

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

Jennifer Douris O’Bryan

Quantum, AI, Navigation, and Biotechnology are among the listed technologies (updated).

12 December 2018
Rodriguez_thumb

A chat with Alejandro Rodriguez of Princeton's Nanophotonics Design and Computation Group.

29 November 2018
Manijeh Razeghi

"Look inside the tiniest of particles and you will find a universe." - Rumi (1207-1273), quoted on the back of Razeghi's "Fundamentals of Solid State Engineering" (2nd edition).

15 November 2018
PW childcare grant

SPIE has created a grant to give parents equal opportunity to attend its largest annual meeting.

1 November 2018
Brainwaves

Conformable arrays of tiny polymer electrodes may improve care and outcomes for epilepsy patients.

11 October 2018
OP18_th

Optics + Photonics 2018 Plenary Presentation Recordings

2 October 2018
Jess Wade

Jess Wade, outreach enthusiast and ambassador for diversity in STEM, is researching semiconducting polymers combined with chiral dopants to develop the next generation of electronics and sensors.

1 October 2018
Jennifer Douris O’Bryan

The US Trade Representative has announced a process for US companies to request permission to continue importing targeted items on a duty-free basis.

(Updated)

7 September 2018
Halina_RubinszteinDunlop

Halina Rubinsztein-Dunlop on mammalian-like zebrafish brains, the optical tools in her research kit, and her favorite role model.

31 July 2018
Lynn Loo interview

The inventor of nanotransfer printing is working on an innovative, self-powering smart window.

13 July 2018
Paul Corkum, University of Ottawa

The award recognizes Corkum's conceptual contributions and development of new laser methods that led to the creation of the field of attoscience.

28 June 2018
SPIE CEO Kent Rochford

SPIE's new CEO Kent Rochford, formerly of NIST, stepped into his new role 1 June. We asked Rochford to discuss his views on SPIE and the world of optics and photonics.

11 June 2018
Tajima-XFEL

A new regime of science at exawatts and zeptoseconds.

16 April 2018
EU regulations

EU-RoHS task force seeks help from the optics and photonics community.

31 April 2018
SPIE Women in Optics logo

A Women in Optics presentation from SPIE Photonics West 2018.

22 March 2018
Imperial_seal

World's oldest dedicated university optics center celebrates a hundred years of optics-related research and education, but notes the need to widen participation.

19 March 2018
Tsai_Achromatic Metalenses

A description of the fabrication and use of a broadband achromatic metalens with high focusing efficiency used in transmission for full-color imaging applications in the visible range of the spectrum.

13 March 2018
SPIE logo

The Photonics West Show Daily spoke with recruiters and students about the optics and photonics job market.

26 February 2018
femtoprint_thumb

From precision components in breathtaking timepieces to micro-needles for vein cannulation, breakthrough laser writing from Photonics West exhibitor Femtoprint is reshaping microdevice fabrication.

16 February 2018
ICO_logo

SPIE, one of seven international organization members of the International Commission for Optics, has supported the mission of the organization for many years.

14 February 2018
WIO-2018-planner-thumb

Taking a path less traveled by women.

29 January 2018
SPIE logo

The 2018 SPIE President shares her career path, education, and other interests with the members of SPIE.

27 January 2018
SPIE logo

Since its inception in 1955, SPIE has focused on providing a conduit for ideas in photonics and optics in a growing and vibrant global marketplace.

26 January 2018
graphene_qd_sensor_thumb

By placing quantum dots on top of graphene, a highly sensitive photodetector is constructed that works simultaneously for visible and IR light.

26 January 2018
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

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
Using stimulated emission depletion microscopy and other techniques, Stefan Hell explores new ways to examine living cells noninvasively.
1 April 2011
Audio recordings and slides from plenary presentations at SPIE Photonics West 2011.
7 February 2011

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

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

31 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
Integration of biological molecules into nanoelectronic devices promises new, sophisticated biointerfacing technologies.
9 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
Ultra-secure quantum cryptography is realized through the wave function collapse of coherent photons.
15 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
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
Room-temperature lasing in cavities with a mode volume of 0.017μm3 and a high quality factor is achievable.
30 June 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
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
Reliable mass spectrometers developed for spaceflight instruments could benefit future terrestrial applications.
16 April 2009
Novel copper electrodes offer high electrical conductivity and optical transparency, which facilitate low-cost, high-performance organic photovoltaic production.
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
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
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
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
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
Colloid chemistry methods represent a powerful and versatile tool for fabricating gold nanoparticles with well-defined sizes and shapes.
16 July 2007
Offering possible advances in everything from computing to spectroscopy, plasmonics represents a powerful technology.
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
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

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

7 February 2006
A new microchip analyzes thousands of cells per minute in an enclosed microfluidic environment.
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