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All Technical Articles - Defense & Security

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

The optical serial coherent analyzer of radio frequency combines aspects of electronic and photonics-assisted devices.
11 November 2014

Microwave photonics enables the transfer of radio frequency signals over optical fibers for mobility and high bandwidth, bridging the gap between wireless applications and photonic technology.

6 November 2014
IR-seeking missiles guided by imaging systems can locate targets even under laser dazzle, enabling them to track and pose a threat to aircraft.
15 October 2014
Simulated test protocols are used to investigate the effectiveness of a novel and non-lethal approach for the degradation of human performance.
23 September 2014
Information generated from vehicle encounters aids localization during navigation signal outages.
19 September 2014

A pre-processing procedure can diminish the data noise from new-generation hyperspectral sensors, thus minimizing negative impacts on target detection algorithms.

18 September 2014
Coherent arrays of fiber lasers appear scalable to weapons-class (100kW) powers with near-perfect beam quality in rugged and compact packages.
12 September 2014
Despite improvements in performance, as yet no face-tracking algorithm is capable of simultaneously tracking and identifying a relatively large number of faces in high-resolution video frames in real time.
8 September 2014

An autonomous person-detection solution could help alert surveillance operators to potential issues, reducing the cognitive burden and achieving more with less manpower.

2 September 2014
Nonlinear conversion of 2μm nanosecond pulses from a high-energy holmium laser enables future IR weapon countermeasures.
27 August 2014
Breaking down statements into their component facts, and developing a reporting format that includes the methods used to obtain them, helps improve the quality of image analysis.
21 August 2014
Game theory using physical constraints, time-delay feedback, and asymmetric information structures guides autonomous vehicles.
1 August 2014
A ground-based laser ranging system with atmospheric turbulence correction improves capabilities for tracking objects in orbit, alerting satellite operators to potential collisions.
31 July 2014
A novel polymer made from sulfur is easily molded and has superior transmission properties in the IR from 600nm up to 6μm with a 1μm stop band.
17 July 2014
A novel filter that enhances underwater video footage in remotely operated vehicle systems is well suited to both military and civilian applications.
15 July 2014
A new, simple, knowledge-unaided power-centroid radar approach yields high signal-to-interference-plus-noise ratios.
7 July 2014
A system using standard surveillance cameras senses human activities relevant for early detection of military threats.
30 June 2014
A system that analyzes data from networks of affordable platform-mounted sensors recognizes security threats to trucks, ships, trains, and other mobile assets.
17 June 2014
Filter paper decorated with plasmonic nanostructures acts as a flexible surface-enhanced Raman scattering substrate for trace detection.
2 June 2014
A high-speed optical processing system that incorporates a digital micromirror device has application for real-time automatic target recognition and holographic data recording.
22 May 2014
Novel free space optical equipment achieves high speed and quality data transfers over distances of almost 2km.
22 May 2014
A handheld mid-IR laser imaging platform detects trace materials quickly and with high sensitivity for explosives detection and medical diagnosis.
20 May 2014
Printing ammonium nitrate onto a surface-enhanced Raman scattering substrate using an inkjet system enables characterization of the material's polymorphic phases.
14 May 2014
The most ambitious biometric deployment in history, to enroll the iris patterns and other identifying data of all 1.2 billion Indian citizens in three years, has now passed its halfway mark.
7 May 2014
A novel portable instrument design for thermal analysis improves the differential temperature and temporal resolution of images that can be obtained even with uncooled detectors.
6 May 2014
A proposed microsatellite mission would demonstrate technology for satellite-based global-scale quantum key distribution.
1 May 2014
3D-printed robots are easily adapted to specific tasks and payloads and can be quickly dispatched in emergency situations.
25 April 2014
Single-photon counting can be achieved with a Geiger-mode array to reduce the size, weight, and cost of future systems.
10 April 2014
A new system-level approach can be used to produce cameras with better detection range and reduced size, weight, power, and cost.
9 April 2014
Novel fiber grating pressure sensors enable monitoring of highly energetic materials during nanosecond periods of burn, deflagration, and detonation.
2 April 2014
A novel sensor system simultaneously analyzes several biochemical signals to produce a rapid YES/NO output, with particular applications for field medical care and homeland security.
26 March 2014
A novel bioinspired nano-injection detector with reduced dark current enables telecom-band photon counting at elevated temperatures.
26 February 2014
A quartz-enhanced photo-acoustic gas sensor employing a custom quartz tuning fork enables extension of the technology into the terahertz range.
23 January 2014

A career spanning more than 50 years in optics is condensed for the benefit of today's engineers.

14 January 2014
A novel sensor technology uses only dielectric materials by attaching a nonlinear optical crystal to the flat surface of a D-shaped optical fiber.
10 January 2014

Recent research demonstrates increased power, spectral coverage, and tunability of quantum cascade lasers.

16 December 2013
A novel optical communication system enables quantum key distribution between a ground station and an airplane in flight.
9 December 2013
A proposed new concept uses laser radiation and a probe beam to detect electromagnetic signatures in the vicinity of radioactive material and enables standoff detection at distances greater than 100m.
30 October 2013
Nonlinear frequency mixing of two laser sources results in a widely tunable laser perfectly suited for molecular spectroscopy.
24 October 2013
Clearing visually obstructive elements from helmet-mounted display systems could assist helicopter pilots with landing in challenging conditions.
24 October 2013
Human-factor aspects such as attentional issues are crucial in designing and evaluating symbology for helmet-mounted displays to enhance pilot operations in degraded visual environments.
23 October 2013
Component- and feature-based approaches enable object detection in aerial imagery.
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
Transportable ground stations that receive high data volumes from aircraft offer a solution for monitoring unforeseen events.
17 October 2013
Combining light projection with Fourier analysis, Fourier transform prolifometry promises to help researchers design better unmanned air vehicles based on flying insects and birds.
16 October 2013
Perceptions of an emerging biometric authentication technique based on unique eye movement patterns suggest it could be preferred over passwords if certain barriers can be overcome.
11 October 2013
Restoring and evaluating security-watermarked photographs helps officials match people and identity documents.
9 October 2013
Novel tunable filter technology enables the launch of small remote sensing satellites at low cost and with greater frequency.
27 September 2013

A virtual digital fingerprint image is produced by blending information from two different fingers.

13 September 2013
A new approach uses hyperspectral and wideband data to identify concealed fissile materials remotely.
22 August 2013
An automated surveillance method that uses multiple image processing can detect, analyze, and track movements to identify emergency situations.
8 August 2013
A simple approach mitigates false alarms in coherent change detection algorithms, while still detecting subtle changes in synthetic aperture radar images.
23 July 2013
Using a microscan mechanism increases the pixel count and resolution of images produced by IR telescope-camera systems.
22 July 2013
Micromachined probes permit on-wafer, in-situ measurements at submillimeter wavelengths and have been demonstrated at frequencies up to 900GHz.
10 July 2013
A novel experiment validates 2D and 3D analytical solutions for the scattering of partially coherent beams from statistically rough surfaces. This research has applications in remote sensing using laser radar.
14 June 2013
Single-photon avalanche diodes offer ultra-sensitive light imaging for enhanced security surveillance and traffic safety.
10 June 2013
A tracker that draws links between individuals' behavior patterns can locate targets in large, highly detailed video images.
7 June 2013
Algorithms identifying the behavior patterns of people and vehicles in wide-area motion imagery can extract intelligence from data that is too large to process manually.
5 June 2013
A novel security scheme combining optical encryption and orthogonal encoding offers robust security without information loss or distortion.
31 May 2013
Metamaterials can create pre-controllable ghost images away from the real object's original position.
28 May 2013
A compact and powerful system to identify hostile fire offers high performance using visible and short wavelength IR.
23 May 2013
A test bed assesses the use of multispectral imagers, which offer increased ease-of-use and lower cost than other systems, to detect a weapon firing.
17 May 2013
President Reagan most likely knew that advances in laser technology would give the United States the upper hand in nuclear talks with the Soviets.
16 May 2013
A novel hyperspectral imaging system can locate liquid chemical warfare agents at stand-off distances, improving operator safety and enabling the rapid survey of scenes.
15 May 2013
New experiments characterize battery thermodynamics and highlight ubiquitous design problems that increase the risk of failure.
10 May 2013
A classification algorithm is able to discriminate laser light scattering patterns originating from single bacterial spores from those originating from single airborne aerosol particles that are naturally-occurring.
10 May 2013
Combining images from airborne sensors enables accurate classification of materials and infrastructure in urban areas, enabling defense applications.
7 May 2013
bomb fragment (FBI photo)

Face recognition, explosive detection among advancing technologies developed by DSS researchers.

17 April 2013
Everyday makeup may reduce the accuracy of systems that use biometric matching for security screening.
15 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
An all-optical sensor enables non-contact temperature measurements of ceramic-coated turbine blades and vanes for the development and monitoring of advanced aircraft engines.
20 March 2013
Incorporating superconducting and semiconducting elements into electromagnetic metamaterials can achieve active control of terahertz radiation.
18 March 2013
A mixed design approach yields a high-performance processor able to meet the requirements of future space missions.
14 March 2013
Microsensors inspired by blind cave fish can help submarine vehicles navigate and detect objects.
6 March 2013
Biometric data enhances defense and security capabilities for identification of humans at day and night, and in variable weather and environmental conditions.
22 February 2013
Compressive sensing provides a practical method for characterizing correlations between pairs of spatially entangled photons at high dimensions.
4 February 2013
Multiscale cameras using compressed image data can reach limits on diffraction and quantum information.
1 February 2013
Terahertz spatial light modulators composed of metamaterial arrays enable novel imaging techniques, offering the potential for improved image resolution, acquisition time, and spectral information.
1 February 2013
A portable, advanced IR sensor in a hollow fiber matched to a silicon-micromachined fast gas chromatography column can analyze illegal stimulants and precursors with nanogram-level sensitivity.
30 January 2013
A generic, graph-theory-based tracking method in videos helps solve the problem of tracking.
29 January 2013
A new, low-cost uncooled detector for the mid-wave IR range uses optical signals and is perfectly suited to gas detection.
27 December 2012
New strategies aim to produce fast, rectifying detectors of radiation at frequencies from 100GHz to beyond 1THz.
17 December 2012
The pyradi toolkit is designed to simplify many common, repetitive calculations researchers must perform while modeling electro-optical systems.
12 December 2012
The processing of mid-wave mercury cadmium telluride IR detector arrays grown by metal organic vapor-phase epitaxy was adapted to achieve high performance at high operating temperatures.
10 December 2012
Diode pumped alkali metal vapor lasers offer significant promise for high average-power performance and laser-weapon applications.
6 December 2012
Optically pumped rare gas lasers that use chemically inert reagents combine the best characteristics of solid-state and gas-phase systems with fewer of the complications of other hybrid techniques.
29 November 2012
Modifications to atmospheric imaging techniques can improve the resolution of images taken under water.
19 November 2012
Arbitrary 3D polarization orientation is used to excite surface plasmon resonance in gold nanorods, creating highly secure encryption 'keys.'
19 November 2012
A unique semiconductor growth technique produces highly sensitive detector arrays with broad spectral range.
15 November 2012
A novel software method enhances camera images blurred by the atmosphere.
16 October 2012
A new compact, robust, and eye-safe scanning system detects and tracks respirable aerosols at mid- to long-range distances.
16 October 2012
Recent experimental results from two research groups show an increase in iris recognition error rate with increased time since enrollment, indicating a need for a re-enrollment scheme or new algorithms.
4 October 2012
Persistent surveillance in urban environments requires efficient sensing operations that can image sparse scenes for quick turnaround and reliable situational awareness.
27 September 2012
Craig BarrettThe former chairman of Intel weighs in on the Optics and Photonics report from the National Academies.
10 September 2012
National Academies report -- Optics and Photonics: Essential Technologies for Our Nation

Recommendations include National Photonics Initiative

17 August 2012
Novel radiation detection concepts are generated by doping both conventional and nanoporous scintillators with triplet-harvesting molecules.
18 September 2012
Noise radar offers immunity from detection, unintended interference, and hostile jamming, as well as excellent resolution in range and Doppler all thanks to its thumbtack ambiguity function.
11 September 2012
A new technique to optimize volumetric representation and advances in graphics processing have enabled efficient construction of 3D models from 2D imagery, while fully capturing the uncertainty in the data.
27 August 2012
A real-time mapping technique enables full-color rendering of multi-spectral nighttime images, making them as clear and colorful as daylight ones.
23 August 2012
Experimentation with random-signal devices aims to add capabilities to target detection devices.
13 August 2012
Combining a distributed aperture with optical up-conversion generates a video-rate, passive millimeter-wave imaging system that provides situational awareness in degraded visual environments.
13 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
The high quality spectra from novel push-broom thermal hyperspectral imagers makes them useful for characterizing materials in numerous defense, field, and industrial situations.
19 July 2012
High-performance, multi-channel systems can be deployed cost-effectively on small, unmanned aircraft for marine mammal surveys, search and rescue, border patrol, and littoral reconnaissance operations.
12 July 2012
Electrical and magnetic properties of soils show a correlation with performance of sensors used for landmine clearance operations.
2 July 2012
Three-dimensional models of the face or ear lead to improved performance in personal identification and verification.
20 June 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
Computers provide continuous biometric authentication in a completely unobtrusive way by analyzing movement patterns of humans during every-day activities.
7 May 2012
A technique based on shortwave IR enhances military capabilities for human recognition in harsh environmental conditions characterized by poor lighting and pronounced shadows.
19 April 2012
The natural randomness of microscopic paper texture is used to extract a unique signature for a region of paper.
16 April 2012
An electro-optical sensor system that includes automatic image processing enables detection of threats to naval platforms.
9 April 2012
Inkjet-printed paper dipsticks take Raman spectroscopy into the field to detect trace chemicals.
22 March 2012
Harnessing LightStakeholders hope that the forthcoming study provides a shot in the arm for awareness and funding.
14 March 2012
A novel approach to improving the visibility of IR images preserves both global contrast and detailed information by incorporating a simple, popular image-processing technique.
13 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 standoff system enables detection of various trace explosives by backscattering IR laser spectroscopy.
28 February 2012
Amorphous silicon microbolometers enable straightforward, high-volume production of highly sensitive, easy-to-use 17μm pixel-pitch uncooled IR focal plane arrays.
15 February 2012
A new laser concept provides 1.2kW of stabilized UV power for flat-panel display production and high-power lidar stations.
14 February 2012
The Advanced Navy Aerosol Model provides a quick and simple method to estimate aerosol properties in the maritime atmosphere using standard meteorological parameters.
10 February 2012
A special class of semiconductor material can now detect two wavebands of light with energies less than a tenth of an electron volt in high resolution using the same IR camera.
10 February 2012
Broadly tunable external cavity quantum cascade lasers perform microscopic imaging of nanogram-scale particles, with chemical identification based on spectroscopy.
8 February 2012
The modulation transfer function of a type II superlattice focal plane array is characterized, and discrepancies from the predicted results are analyzed.
20 January 2012
Localized heating in diode-pumped alkali lasers induces spatial variations in metal vapor density, leading to a reduction in laser power.
18 January 2012
New imaging techniques provide greatly improved resolution and detection of weapons or other objects concealed on a person.
12 January 2012
A new scheme with an inherent integer Gray code property reduces photonic analog-to-digital converter errors while enhancing resolution.
9 January 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
Computers can now detect micro-expressions that reveal emotions people try to conceal.
4 January 2012
An indium antimonide photodetector for high-end applications is developed with a readout integrated circuit in an advanced CMOS process.
6 December 2011
A new heterostructure radiation detector has less demanding operating condition requirements and allows reduced size, weight, and cooling power.
22 November 2011
Weilin (Will) Hou

Besides particulates, optical turbulence also impacts visibility in the ocean.

15 November 2011
An approach to cryptography based not only on quantum mechanics but also the special theory of relativity has the advantage of higher efficiency, with unconditional security.
2 November 2011
A focal plane array based on a new material and detector architecture with improved electrical performance provides mid-wavelength-IR imaging of a human being at 170K.
25 October 2011
Active optical devices, such as spatial light modulators, variable focal length lenses, and deformable mirrors, are providing new capabilities in imaging systems for defense and security applications.
24 October 2011
Phase-matching a co-propagating electromagnetic wave and electron beam as they pass through an obliquely modulated plasma causes the beam to emit terahertz radiation.
5 October 2011
Thermal and visible-band video makes it possible to discriminate suspicious objects from people.
5 October 2011
An iterative computational method uses IR images to evaluate the positions and trajectories of moving objects in a cluster.
3 October 2011

New algorithms have increased accuracy dramatically, but overcoming a host of variables in unconstrained settings is still the biggest challenge in facial recognition.

28 September 2011
A new projector will enable future optical and IR-imaging instrument performance to be evaluated using moving scenes that are spectrally and spatially realistic.
9 September 2011
A novel sensing and control algorithm that enables distributed sensors to share data simultaneously offers a solution to a major challenge in military surveillance.
30 August 2011
Hollow-core waveguides enable effective, single-mode fiber delivery of mid-IR laser beams.
24 August 2011

Paul Lewis discusses ASPECT, an airborne suite of sensors that provides critical data in emergencies, including the Gulf of Mexico oil spill.

15 August 2011
Detectors based on active neutron and x-ray interrogation can confirm the presence of bulk explosive threats such as landmines, improvised explosive devices, and unexploded artillery shells buried in soil.
5 August 2011
A technique for detecting short bursts of terahertz radiation through the use of laser plasma-induced acoustic waves should enable the detection of hazardous materials at a safe distance.
18 July 2011
New software simultaneously calibrates conventional and omnidirectional cameras in the same stereoscopic rig.
28 June 2011
Biosensors created to exploit the optical properties of quantum dots prove an effective means of measuring intracellular pH in single cells.
21 June 2011
A liquid-crystal waveguide offers unprecedented voltage control over optical phase.
13 June 2011
New high-power quantum cascade lasers show continuous-wave operation and wide tunability at room temperature.
13 June 2011
A novel method of constructing graphs of agent-based simulation data enables social scientists to better understand complex systems.
10 June 2011
A camera that operates at video frame rate offers a solution to stand-off imaging for search and rescue in fire disasters and label-free biomaterial detection.
8 June 2011
The Vice-Chairman of the Joint Chiefs of Staff spoke at SPIE Defense, Security and Sensing 2011 about the implications of the volume of data now available from deployed sensors.
24 May 2011
Early identification of non-obvious issues is critical for defining requirements that affect cost, scheduling, performance, and risk in intelligence-gathering systems.
20 May 2011
A scheme for identifying altered features of cityscapes that compares existing building models with new lidar data points and aerial images improves the accuracy of 3D spatial information.
19 May 2011
Innovative direct-diode lasers have both industrial and defense applications.
16 May 2011
We define a framework that demonstrates how video scrambling techniques can effectively foil facial recognition.
10 May 2011
Self-assembled nanostructures offer rapid, reversible tuning over the entire visible spectrum using external magnetic fields.
5 May 2011
Smaller, faster, cheaper optical biosensors offer the capacity to provide effective and actionable information.
28 April 2011
Advances in the detection of explosives and other threats significantly improve the ability to determine various threats, from explosives to nuclear.
22 April 2011
Future designs require high-resolution sensors and brighter displays to allow for the integration of night vision.
20 April 2011
An integrated ocean observation system for tracking oil, implemented immediately after the well exploded, aided federal and state agencies in mitigation attempts.
19 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
Explosives, bacteria, and chemicals can be identified from their 2D resonance-Raman spectra, even when several substances are mixed together.
14 April 2011
Better design of barriers in antimonide-based superlattice photodetectors extends their wavelength and temperature range.
7 April 2011
Modeled after the nanoscale morphology of butterfly wings, a new chemical sensor may deliver laboratory-level sensitivity and selectivity in a low-cost, portable package.
5 April 2011
A terahertz external-cavity surface-emitting-laser source delivering milliwatt powers at any targeted frequency across the tHz gap could address a broad range of applications.
15 March 2011
A new barcode fabrication method provides a means of authentication aimed at thwarting product piracy and document forgery.
14 March 2011
Insect-inspired optical sensors provide effective stabilization, compassing, and navigation.
8 March 2011

Based in Jena, the birthplace of optical technology in Germany, JENOPTIK's Michael Mertin has a unique perspective on the industry's past and future.

28 February 2011
Gas lasers, as well as various types of solid-state, fiber, and free-electron lasers, enable successful development of a high-power ‘space-age’ weapon.
17 February 2011
Real-time analysis of IR emission from eye and nose areas provides a nonintrusive method for evaluating statements.
15 February 2011
Fabricated with semiconductor-manufacturing tools, room-temperature terahertz-range detector arrays would enable faster, lower-cost, and less intrusive security screening.
14 February 2011
A sensitized microring resonator provides selective detection of trinitrotoluene down to 5.29 parts per billion or less in a low-cost, reusable, chip-scale design.
11 February 2011
By studying the time evolution of substances' responses to terahertz radiation, materials of interest can be differentiated in a way not permitted by frequency domain analysis alone.
9 February 2011
Nematic liquid crystals, the basic material of most flat-panel displays, enable detection of chemical and biological agents.
1 February 2011
Recent progress in semiconductor-laser technology opens up new opportunities for products that protect airliners against heat-seeking missiles and travelers against attacks with toxic chemicals or explosives.
13 January 2011
A micro air vehicle with onboard intelligence can maneuver in hard-to-reach parts of disaster areas and provide video images for search-and-rescue operations.
13 January 2011
IR-sensor performance can be improved by integrating a carbon-nanotube structure with a photonic crystal.
5 January 2011
An algorithm based on the generalized Gaussian-mixture model offers robustness to noise and flexibility in modeling a wide range of facial appearances.
13 December 2010
Mid-wave IR photodetectors can be optimized by incorporating an ‘nBn’-layered design.
6 December 2010
New light-emitting plastic-waveguide designs advance the prospect of on-chip organic photonic systems for applications ranging from chemical sensing to data communications.
22 November 2010
Recent progress in advanced semiconductor light sources, together with their brightness and narrow linewidth, should help overcome resistance to their widespread application.
17 November 2010
Incorporating a reconfigurable mask in an IR system can simplify the optics and give better than a fourfold improvement in imaging resolution.
10 November 2010
A new lens offers a possible solution to the formation of broadband light images in today's demanding multispectral applications.
10 November 2010

Now engaged in a series of shots that will lead up to conducting full-scale ignition experiments as part of the National Ignition Campaign, the NIF is nearing its objective, says its director.

29 October 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 father of the FEL talks about current research and potential applications of the technology, from genetics to defense and security.
19 October 2010
Using a single, continuously tunable laser provides better molecular discrimination and enables simultaneous detection of several molecules.
18 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
A new class of speech-recognition applications achieves success rates that are several orders of magnitude higher than typical.
6 October 2010

Progress is being made in recognizing and identifying humans at a distance, but challenges remain in all areas of biometrics.

30 September 2010
Winners of the 2009 NASA Power Beaming Competition, innovators at LaserMotive are plotting the development course of laser propulsion.
23 September 2010
The president of Polaris Sensor Technologies discusses 3D imaging as it applies to defense, robotics, and other applications.
22 September 2010
Patterned metal-dielectric interfaces allow active guiding of mid-IR laser beams through subwavelength apertures in metal films.
20 September 2010
Rare-earth fluorescent nanophosphors upconvert from near-IR to visible wavelengths to provide bright, low-noise images.
17 September 2010
A fiber-based, polarization-encoding quantum-key distribution system enables classical communication and key distribution on the same link.
7 September 2010
A quantum-noise-randomized cipher has the potential to provide secure high-speed data-center service.
1 September 2010
Photonic-bandgap fibers allow a unique, simple production method without compromising sensitivity or the ease of microfluidic integration.
17 August 2010
High-speed optical detectors that are sensitive in the near-IR wavelength region have application in global 3D mapping, atmospheric gas measurements, and laser communications.
11 August 2010
A new instrumentation platform allows for battery-powered sensors in a wide-area network that can accurately monitor trace gases.
2 August 2010
A network of small, optical imaging sensors may help prevent future clashes between satellites and space debris.
19 July 2010
A new sensing technique takes away the need for computers in adaptive optics.
19 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
Automated analysis and identification of suspect behaviors and functions of buildings, people, and vehicles are needed for real-time, actionable intelligence.
8 July 2010

Expertise in building and leading organizations has led to a string of successes and Irvin's status as an accomplished photonics entrepreneur.

5 July 2010
Driving sensors that are based on mass loading of resonators into large-amplitude nonlinear oscillations has potential for applications such as detecting toxic and explosive substances.
17 June 2010
After more than 30 years at Bell Labs, Patel founded a company dedicated to trace-gas measurement technologies for industrial, environmental, and security applications.
11 June 2010
Configuring an IR focal-plane array in a 1cc cold chamber pierced by a small pinhole enables a tiny thermal imager without optics.
27 May 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
Entropyology applies bioinformatics and data modeling to digital virus and malware recognition.
19 May 2010
Passive fiber-optic networks for gas detection offer unparalleled benefits in interrogation range, multispecies selectivity, high sensitivity, long-term reliability and stability, and intrinsic safety.
7 May 2010
A suite of gadgets that will soon fit inside a mobile device can localize personnel inside buildings without relying on global-positioning systems.
13 April 2010

The mature technology of the QCL is now finding commercial applications.

8 April 2010
Carefully positioned potential barriers suppress photocarrier capture by quantum dots.
29 March 2010
Measurements of thin films in a parallel-plate waveguide provide high-resolution identification of < .10GHz-wide vibrational lines.
26 March 2010
A newly developed detector for toxic industrial chemicals is highly sensitive, simple, fast, and inexpensive, and it works by visualizing odors.
3 March 2010
Model-based ‘opinions’ of data and their aggregates replace the probabilistic weights in a neural algorithm to improve accuracy and response times.
3 March 2010
A quantum-dot-based thin-film approach enables development of light, powerful, and flexible photovoltaic cells.
2 March 2010
A new approach to facial identification makes automated surveillance easier.
22 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
The constructive interference of coherent light inside microsphere cavities enables robust, ultrasensitive biosensors as observed from resonance-frequency shifts.
4 February 2010
Novel optical systems show excellent properties for laser-induced fluorescence detection of dangerous aerosols, hydrosols, chemicals, and explosives.
2 February 2010
Simulations suggest that computer-vision techniques offer important advantages over conventional sensors in satellite-based tracking missions.
27 January 2010
Many of the pioneering giant lasers at Lawrence Livermore were built during John Emmett's leadership.
21 January 2010
Leon Esterowitz completed his PhD in the early 60s in the early days of the laser. After a career in defense, he moved to NSF, and now reviews funding proposals in biophotonics.
13 January 2010
Interconnecting microelectromechanical systems directly to printed circuit boards can improve reliability and reduce costs of medium-caliber fuzes.
6 January 2010
Proactively placing laser-engraved tooling marks in weapons could provide invaluable data for effective counterinsurgency operations.
4 January 2010
A combination of structured light illumination and a suitable algorithm offers a solution to problems of precision associated with conventional print capture.
31 December 2009
Sustained efforts in designing techniques for information protection are essential to streamline the proliferation of convenient and efficient biometric systems.
3 December 2009
Taking into account uncertainties in classification results in an improved alternative to conventional means of detecting moving objects.
13 November 2009
The combination of microfluidics and plastic electronics could bring laboratory-quality analysis to the practitioner in the field.
16 October 2009
Very thin absorbing layers that can absorb 99% of the incident light facilitate construction of more efficient single-photon detectors.
14 October 2009
Estimating the percentage of blood oxygen can reliably prevent spoof attacks on a range of biometric sensors.
16 September 2009
Innovative algorithms and software tools developed within a game-theoretic framework aid automatic decision making and enhance the effectiveness and robustness of space surveillance.
10 September 2009

From fabric that can process images to laser communication to brain surgery, Yoel Fink of MIT describes some of the uses of multimaterial fibers.

9 September 2009
A randomized stream cipher provides ultra-high-speed data encryption over long-distance channels.
8 September 2009
Understanding influences such as humidity, standoff distance, and sample roughness is crucial for real-world implementation of terahertz spectroscopy.
2 September 2009
Operation and predictive modeling of GaAs/AlGaAs semiconductor diodes record fundamental-mode frequencies of ~100GHz.
27 August 2009
New flexible electronics technologies are becoming more viable and durable, with some ready for market as early as next year.
21 August 2009
A novel intrusion detector offers several advantages compared with traditional methods, including a simpler design and improved levels of discrimination.
20 August 2009
Modified chemomechanical polishing can reduce five-fold the surface roughness of large-diameter indium antimonide substrates used in advanced imaging systems and devices.
20 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
A new method rapidly acquires depth scans at extended distances, paving the way for resolving low-signature targets at power levels safe for human eyes.
29 July 2009
Sandwich structures make IR cameras that provide high-quality IR images, detecting even minuscule temperature differences within a tenth of a millisecond.
28 July 2009
Using a dielectric cylinder surrounded by a negative refractive-index shell, electromagnetic-wave scattering by objects outside the cylinder/shell region can be suppressed effectively.
24 July 2009
Key research leaders from government and industry discuss the challenges of creating revolutionary developments
15 July 2009
Key research leaders from government and industry discuss future revolutions in military developments
15 July 2009
Key research leaders from government and industry discuss the challenges and opportunities of working in defense and security
15 July 2009
Ultra-secure quantum cryptography is realized through the wave function collapse of coherent photons.
15 July 2009
Real-time IR motion sensing poses significant challenges that can be met robustly using two novel approaches.
14 July 2009
Growing indium nitride film in a different orientation paves the way for noninvasive analysis of chemical composition.
1 July 2009
A free-space optical beam can reliably transfer more than one bit of data per photon received, even in the presence of background light.
18 June 2009
Apparent superiority of sophisticated detection algorithms in test conditions does not necessarily imply the same in real-world hyperspectral imaging applications.
17 June 2009
An automatic system for matching and retrieving tattoo images will help advance the investigative capabilities of law enforcement and forensics agencies.
15 June 2009
From explosions to obscurity, Tom Elliott discusses the history of this important technology.
9 June 2009
Top SPIE Newsroom articles from the previous month, and papers from SPIE Journals and Conference Proceedings.
9 June 2009
The proliferation of touchscreen-enabled devices represents an emerging and promising environment for automatic biometric validation systems.
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
Krohn discusses the near-term and future applications of fiber optics sensors, photonics sensors, and laser technologies in the transportation industry.
15 May 2009
NASA is investigating the challenges involved in meeting the sophisticated visual demands of tomorrow's airspace system.
14 May 2009
Innovations in photonics and microfluidics have enabled the development of a novel, rapid, sensitive, low-cost, and portable micro-gas analyzer.
4 May 2009
New eye-recognition research could result in more user-friendly and accurate technology.
4 May 2009

The Qinetiq researcher talks about progress in passive millimter-wave imaging, and transitioning technology from the laboratory to the real world.

1 May 2009
Norman AugustineThe pace of change of modern technology requires that the engineering profession reinvent itself. Norman Augustine addressed this topic at the SPIE Defense, Security and Sensing symposium. (Video interview and podcast of speech)
29 April 2009
Project director Ed Moses talks about the challenges and the possibilities as the National Ignition Facility gets ready for experiments.
21 April 2009
Innovations in photon-detection technology facilitate quantum-key distribution to multi-user networks and one-time pad encryption.
16 April 2009
Progress in the fabrication, assembly, and manipulation of nanotubes and graphene-based materials promises many technological advances.
8 April 2009
Studying binary motion patterns may enable simple, real-time, autonomous detection of abnormal events in surveillance video.
2 April 2009
A novel color-transformation method converts daytime scenes into night-vision goggle images suitable for realistic nighttime training.
27 March 2009
A novel biometrics system employing finger-knuckle-surface measurements has achieved promising, highly accurate results.
20 March 2009
Advances in hardware and in chemistry and nanotechnology are continually increasing the applicability of Raman spectroscopy in the defense and security sector.
17 March 2009
A carefully patterned metal surface may strongly localize microwaves, thus enabling novel microwave-technology developments.
12 March 2009
Decomposing an image sequence into slices that generate twisted patterns sufficiently characterizes human gait and a particular class of activities.
10 March 2009
Telltale spectra can identify illicit drugs hidden in packages.
24 February 2009
A novel scanning-image volume-holographic correlator enables high-speed optical-pattern matching and tracking.
24 February 2009
Transferring quantum communication to space poses interesting challenges in both cryptography and fundamental physics.
13 February 2009
Incorporating daylight and infrared optics offers improved rates of target acquisition.
9 February 2009
A novel technique for optimizing compression outperforms wavelets for data subject to quantization or thresholding.
3 February 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
A new heterogeneous integration technique enables the integration of acoustic microsensors and radio frequency (RF) circuitry.
20 January 2009
Application of independent-component analysis boosts the performance of current surveillance and defense systems.
13 January 2009
Current research in materials and manufacture envisages significant improvements with implications for process control, tool technologies, helmet-mounted sensors, and in situ sensing.
9 January 2009
Single-frequency, low-phase-noise planar semiconductor lasers enable low-cost, reliable, and compact optical-sensor fabrication for oil and gas, civil-structure engineering, and security markets.
6 January 2009
Challenges introduced by new transmission standards and the ability to store programs for later viewing are addressed with audio watermarking and fingerprinting.
30 December 2008
Ferroelectric nanotubes that produce intense, high-frequency emissions may lead to new medical, military, and security devices.
28 December 2008
By incorporating information from hundreds of contiguous spectral bands, hyperspectral imaging provides a fuller picture of an unknown target than previously possible.
24 December 2008
A newly developed electric-field sensing technology with unprecedented sensitivity and noise immunity can passively acquire physiological signals in an electrically noisy environment.
17 December 2008
Distributed sensing and data processing may enable in-flight monitoring of aerospace vehicles, revealing damage quickly and accurately.
15 December 2008
A near-IR-based portable device can identify and localize suspected brain bleeding in trauma patients.
15 December 2008
Automated techniques improve the ability of airborne surveillance video to detect, track, and extract shapes of ground vehicles in motion.
15 December 2008
An innovative routing protocol and security algorithm improve the performance of mobile ad hoc networks for military applications.
15 December 2008
A joint coding and embedding strategy can enhance the security of electronic media against illegal copying and redistribution.
15 December 2008
The light-absorption properties of this accidentally discovered material promise sweeping advances from cameras to solar cells.
8 December 2008
Recent advances in the design and fabrication of mid-IR lasers pave the way for important applications such as countermeasures and remote sensing.
8 December 2008
Tools from differential geometry enable a biometric technology that efficiently and accurately distinguishes between people, even as similar as a pair of identical twins.
1 December 2008
Biometric authentication methods are becoming more widespread in security, industrial, and even ergonomic applications.
1 December 2008
Electrically driving a flowable laser gain medium is key to high output beam quality.
18 November 2008
Parallelized calculations on a configurable system can vastly improve speed of recognition and template matching.
6 November 2008
Advanced correlation filters, combined with the kernel method for pattern analysis, improve classification performance.
6 November 2008
Using the theory of transformation optics, practical cylindrical invisibility cloaks can be devised to conceal objects from detection at a targeted wavelength.
5 November 2008
The Army seeks to develop fundamental technologies that will enable ensembles of palm-sized unmanned systems to support personnel operating in a variety of dangerous environments.
29 October 2008

Presentations at the SPIE Europe Security + Defence symposium highlight the synergy of detection and data-processing software to identify potential threats.

21 October 2008
An airborne infrared imaging spectrometer overcomes vibration to detect harmful compounds up to 5km away.
6 October 2008
Cantilever bending monitoring via the Surface Plasmon Resonance (SPR) phenomenonSurface plasmon resonance techniques can improve the sensitivity of sensors based on cantilever probes.
8 September 2008
Raman spectroscopy could help to track down liquid explosives before they are made.
4 September 2008

As the CEO of Edmund Optics, Robert Edmund has a unique perspective on the industry. He talks about growing up in optics, how the company has changed, globalization, and his outlook for the industry.

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
Exploiting regularities in object shape for feature-level image fusion leads to improved object segmentation.
25 February 2008
At the DARPA Urban Challenge, autonomous vehicles proved they have a future. This SPIE Newsroom video shows some of the action and talks about the technology.
14 November 2007
Recently developed fully integrated all-fiber supercontinuum sources allow 5mW/nm spectral power density in the blue/uv, while cw pumped 50mW/nm is obtained in the near IR.
14 November 2007
Autonomous vehicle technology took a big step closer to reality as six robotic cars completed a 60-mile course on city streets.
5 November 2007

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

16 August 2007

Upendra Singh talks about the NASA Laser Risk Reduction Program, the 2-micron laser, and changes in remote sensing.

15 August 2007

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

7 August 2007
Michael DeWeert discusses harbor security and how sensor fusion and unmanned vehicles can help.
7 August 2007
Theodore Maiman, who died in May 2007, is known for creating the first working laser out of a discredited material -- ruby -- in May 1960.
9 May 2007
In this video of his Photonics West presentation, David Krohn shares expert advice and perspective on the market potential, technology, opportunities and barriers in biophotonics.
5 February 2007
Technology developments have enabled the deployment of hyperspectral sensors to new application areas.
4 January 2007
The quantum cascade laser's unique properties -- especially its power, tuning range and ability to work pulsed at room temperature -- make it ideal for a variety of gas sensing applications.
17 December 2006
Because of their many advantages, fiber lasers are used in some rugged environments, demanding exceptional reliability.
17 July 2006
 Interviews from SPIE Defense and Security Symposium spotlight the future of critical technologies
19 May 2006
From oemagazine June 2001
31 June 2001
From oemagazine June 2001
31 June 2001
From OE Reports Number 199 - July 2000
30 July 2000
From OE Reports Number 196 - April 2000
31 April 2000
From OE Reports Number 196 - April 2000
31 April 2000
From OE Reports Number 195 - March 2000
29 March 2000
From OE Reports Number 195 - March 2000
29 March 2000
From OE Reports Number 192 - December 1999
30 December 1999
From OE Reports Number 186 - June 1999
31 June 1999
From OE Reports Number 183 - March 1999
28 March 1999
From OE Reports Number 159 - March 1997
28 March 1997