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(38,316 articles)
Popular News
The Incredible Shrinking IR Camera
Apr 1, 2002 — Many interesting and important IR imaging applications remain limited by the practical and economic barriers of camera technology; namely, camera size, weight and power consumption. A typical example is in fire fighting, where ideally every firefighter would have a lightweight, long-life, smoke-penetrating IR vision system integrated into his or her helmet. Instead, many still share one handheld unit per team.Compounding the problem is the fact that many applications are demanding in terms of...
Machine Vision
Apr 1, 2002 — Thanks to LEDs and off-the-shelf CCD camera technology, robots can now insert automotive windshields on the fly as a car moves along the production line. The first such application in the world is Ford Fiesta and Mazda 121 assembly lines at a Ford...
Companies Unite on Standards for Compact Fiber Amplifiers
Apr 1, 2002 — Compact erbium-doped fiber amplifiers produced by Agere Systems, Alcatel Optronics and Nortel Networks will conform to specified packaging dimensions, pin functionality, and optical and electrical characteristics as a result of a multisource...
A Cautionary Tale: The Flat Panel Display Initiative
Apr 1, 2002 — The war on terrorism has spawned renewed interest in photonic sensor technology for detecting everything from stray nuclear weapons to smallpox. As companies weigh patriotism against profit, they should be aware that the government trough is neither...
Olympus Fosters Partnership Development
Apr 1, 2002 — While companies like Lucent Technologies, Compaq Computer, Enron, Global Crossing and a host of others are either scaling back or abandoning their venture capital holdings, Olympus Integrated Technologies America Inc. in San Jose, Calif., has...
Firm Develops Flexible, Transparent Displays for Military Use
Apr 1, 2002 — Universal Display Corp. will determine the suitability of three of its organic LED technologies -- high-efficiency phosphorescent, transparent and flexible LEDs -- for use as clear, low-power, high-resolution displays for the US Army. Such a...
Growth Is Predicted for FO Isolator Consumption
Apr 1, 2002 — The global consumption value of fiber optic component isolators will rise from $296.3 million in 2001 to $672.7 million by 2006, according to ElectroniCast's Fiber Optic Isolator Global Market Forecast. The isolators are used to prevent laser-output...
Agilent Technologies Gifts $1 Million in Photonic Lab Equipment
Apr 1, 2002 — Agilent Technologies will donate equipment valued at $1 million to Sonoma State University in Rohnert Park, Calif., to create an engineering science laboratory. Equipment will include optical spectrum, lightwave component and digital communications...
Raytheon, ITT Ally to Improve Night-Vision Technology
Apr 1, 2002 — Raytheon Co. of Dallas and ITT Industries Night Vision of Roanoke, Va., have agreed to combine their expertise in thermal imaging and image intensification to produce night-vision sensor-fusion technology. The aim is to make nighttime operations of...
Lasers Get to the Bottom of Bad Beer
Apr 1, 2002 — Anyone who has tasted beer that has been exposed to too much sunlight will recall a uniquely unpleasant flavor, followed by shudders. The light transforms the beer, producing a sulfur compound that is not unlike the noxious chemical produced by...
Optical Bench Supports Research
Apr 1, 2002 — As photonics strives to reach parity with the semiconductor industry, the quest for automated fiber alignment and packaging solutions has become the focus of an industry bent on high-volume manufacturing. However, few advances have been made...
Optical Setup Explores Microbes and Minerals
Apr 1, 2002 — Despite concerted efforts by the Department of Energy to clean up radioactive waste at bioremediation sites in Hanford, Wash., and Oak Ridge, Tenn., progress is going very slowly. Jill Scott, a chemist and lead researcher for the Environmental...
Rotators Stop the Feedback
Apr 1, 2002 — High-power laser beams present unique challenges to laser designers. When Positive Light Inc. agreed to build a glass-amplified laser for the Japan Atomic Energy Research Institute, it combined rotators and isolators from Electro-Optics Technology...
Unmanned-Aircraft Sensor Could Detect Cave Dwellers
Apr 1, 2002 — A sensor suite designed for unmanned aircraft promises sensitivity and resolution high enough to detect human activity in caves. The proposed Airborne Infrared Surveillance sensor would consist of three acquisition and three tracking cameras, along...
Laser Tweezers Transport Cell-Size Liposomes
Apr 1, 2002 — Researchers at Kyoto University in Japan have demonstrated a method to trap and transport cell-size liposomes with laser tweezers. Liposomes can carry chemicals such as enzymes, DNA or RNA and remain stable for weeks. The work may pave the way for...
Laser Enables Robust Quantum Communication
Apr 1, 2002 — Quantum communication is the key to such advances as quantum computing and encryption. In a nutshell, quantum communication means transferring entanglement -- identical quantum states -- over long distances. Unfortunately, the fidelity of those...
Method Proposed for Single-Cycle Pulses
Apr 1, 2002 — Using computer simulations, researchers from the University of California and the University of Southern California, both in Los Angeles, have proposed a method to use the phenomenon of particle deceleration in underdense plasmas to generate nearly...
Near-Field Optics Pattern Photosensitive Sol Gel Films
Apr 1, 2002 — Scientists from École Polytechnique in Palaiseau, France, have created nanometer-scale patterns in thin sol-gel films containing azobenzene moieties by using the light from a near-field optical probe to induce migration of the photosensitive...
Measurement Offers Insight into Diodes
Apr 1, 2002 — Unamplified spontaneous emission and gain spectra offer insight into the behavior of semiconductor laser materials and structures. But the analytical methods that use them require complex materials processing to enable the measurements in different...
Near-Field Microscopy Maps Nanoscale Material Compositions
Apr 1, 2002 — Far-field microscopy techniques typically cannot map different types of materials on multicomponent nanostructures because the associated wavelength limit causes blurring of the image. Researchers at the Max Planck Institut für Biochemie in...
Laser Emissions Induced in Micron-Scale Silicon Aggregates
Apr 1, 2002 — Researchers from the University of Illinois in Urbana-Champaign have induced 610-nm laser emissions in aggregates of silicon as small as 8 µm in diameter. The aggregates were formed by dispersing nanoparticles of silicon from a bulk form through...
Welding System Monitors Gas Shield
Apr 1, 2002 — Although laser welding is widely used in manufacturing, it has not yet found a home in the aerospace industry. The technique would be an attractive tool in this sector if its reliability could be improved, but aerospace alloys present problems that...
Laser System Detects Explosives Remotely
Apr 1, 2002 — Traditionally, the most sensitive techniques for detecting explosives have involved sampling and analyzing the air near a suspected bomb. This is time-consuming and potentially dangerous. Now a team at Soreq Nuclear Research Center in Yavne, Israel,...
Quantum Hall Far-IR Photodetector Evaluated
Apr 1, 2002 — The ability of modulation-doped AlGaAs/GaAs heterojunctions to detect far-IR radiation has been known for almost two decades, but only recently has the technology evolved into a high-sensitivity, narrowband tunable photodetector. Researchers at the...
Dye Lases by Three-Photon Excitation
Apr 1, 2002 — Researchers at State University of New York in Buffalo have developed an organic dye that absorbs three photons of infrared radiation to produce stimulated emission at 553 nm. Because of its relatively high efficiency, the dye may have applications...
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August 2024
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