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(38,284 articles)
Popular News
We Need to Curb Conflicts in Global High-Tech
Jan 1, 1997 — There is remarkably little multinational cooperation for the development of new, commercially relevant technologies. There are regional efforts -- notably among the members of the European Union - but, even in Europe, national programs dominate heavily. From a global perspective, the National Research Council analysis identifies a number of the issues that end to constrain cooperation, and argues that capital and technology challenges push companies toward greater cooperation.
Laser Fusion: An Old Dream Nears Realization
Jan 1, 1997 — When completed in 2002, the National Ignition Facility will culminate more than a decade of research on laser ignition: the controlled implosion of a small, hydrogen-isotope-filled target by laser beams of sufficient energy and quality to create...
IR Imaging Arrays Turn to Quantum Wells
Jan 1, 1997 — A new semiconductor-based infrared detector technology for mid- and long-wavelength instruments is ready for the marketplace. The quantum-well infrared photodetector (QWIP) is based on absorption by confined carriers in multiple quantum wells. QWIPs...
Long-Period Gratings: Next Generation of Fiber Sensors
Jan 1, 1997 — Fiber optic sensors, thanks to their size, flexibility and survivability advantages, continue to gain popularity as effective alternatives to conventional transducers. Two types have emerged as leaders in meeting the changing needs of industrial...
Microlasers Can Anticipate Expanding Market
Jan 1, 1997 — The air-cooled argon-ion laser remains the most widely used source OEM applications requiring blue or green light. However, its shortcomings in efficiency, size, operating life and cost have inhibited the growth and development of applications....
Modular CCDs: Building Blocks for Large-Area Sensors
Jan 1, 1997 — Using the concept of a jigsaw puzzle, the latest generation of high-resolution imagers is built up from several pieces of 1-megapixel blocks. Philips joins the pieces together using dedicated stitching patterns available on the masks during the...
Microscopy: Old Technology Gets New Life
Jan 1, 1997 — Over the last 150 years of microscope development, an impressive array of innovations has come to light. Today’s seemingly commonplace imaging techniques include phase contrast, which won a Nobel prize for the Zeiss developer Frits Zernicke when...
Micro-Opto Electromechanics Could Revolutionize Photonic Systems
Jan 1, 1997 — Advances in micro-optics have led to the development of large-volume and batch-processed diffractive and refractive micro-optical components, creating a technology that promises to revolutionize many photonic systems. Similar to micro-optic...
PC-Based Laser Analyzers: New Uses Require Improved Devices
Jan 1, 1997 — Over the past few years the beam-profile quality of lasers has risen dramatically. Nevertheless, competitive pressures and demanding applications require even higher beam quality and are pushing the capabilities of many lasers. The only way to...
Raman Spectroscopy: Ready to Meet New Challenges
Jan 1, 1997 — Once the realm of a few theorists, Raman spectroscopy has surged in popularity during the last decade. Improvements in optics, lasers, detectors and data analysis techniques have turned this laboratory technique into an industrial tool used even in...
Replica Molding: Complex Optics at Lower Costs
Jan 1, 1997 — Researchers at Harvard’s Chemistry Department are exploring new ways of fabricating complex, optically functional surfaces, components and devices using elastomers as starting materials. Organic polymers in elastomeric molds show promise because...
Smart Lightpipe Designs Provide Cost-Effective Optics
Jan 1, 1997 — For a technology that doesn't get much respect, lightpipes are undergoing remarkably rapid applications growth. Lightpipes carry light from sources -- incandescent or fluorescent lamps or light-emitting diodes -- to illumination tasks. Applications...
Optical Software Undergoing Dramatic Change
Jan 1, 1997 — Lens design software once was characterized by large, expensive and user-unfriendly programs running on large, expensive and painfully slow mainframe computers. Lens design was almost exclusively the domain of dedicated professionals in classical...
All Solid-State Lasers: An Industry Option with Big Potential
Jan 1, 1997 — Improvements in the size, power, lifetime and ruggedness of solid-state lasers has truly improved their chances in a marketplace that sees a laser as a device and not necessarily a tool. As applications for solid-state devices grow, researchers will...
The Proactive View From Germany
Jan 1, 1997 — As part of a joint presentation on Germany’s drive to keep pace in global, high-tech competition in research development and production, the Institute for Economic Research in Hamburg, Germany, suggests that the country must embrace an economic...
Coherent Expands with Purchase of Finnish Wafer Processor Stock
Jan 1, 1997 — In a move to expand its capabilities and market share in the semiconductor laser industry, Coherent Inc. of Santa Clara, Calif., has acquired 80 percent of the outstanding shares of Finnish epitaxial-wafer producer Tutcore OY Ltd. Coherent also has...
Entries Sought for Advanced Technology Program Competition
Jan 1, 1997 — The US Department of Commerce is seeking entries for R&D awards under its Advanced Technology Program. The department will make $20 million to $25 million available to support private industry's development of innovative, high-risk technologies...
Pentagon Doles Out $570,000 in Research Grants to Aculight
Jan 1, 1997 — The US Air Force Wright Laboratory Armament Directorate has awarded a $400,000 Small Business Innovation Research Phase II contract to Aculight Corp. of Bellevue, Wash., to develop a 20-kHz, 1.5- to 2.4-µm eye-safe laser illuminator for...
Hughes to Build Redesigned Infrared Missiles for Navy
Jan 1, 1997 — The US Navy has awarded a $169 million contract for its new Sidewinder AIM-9X missiles to Hughes Missile Systems of Tucson, Ariz. Sidewinder missiles use infrared technology to seek out enemy aircraft by locking on to the heat signatures of their...
Thermo Optek, Laser Science Walk Away from Acquisition Deal
Jan 1, 1997 — Thermo Optek Corp. of Waltham, Mass., has retracted its bid to acquire Laser Science Inc. of Newton, Mass. The Thermo Instrument System subsidiary withdrew its registration with the US Securities and Exchange Commission for up to 400,000 shares of...
Two-Photon Therapy Holds Promise as Cancer Treatment
Jan 1, 1997 — OAK RIDGE, Tenn. -- A two-photon laser technique holds the promise of treating deep-tissue cancers such as early-stage breast cancer, say the scientists who developed the technique. Researchers at Oak Ridge National Laboratory employ a mode-locked...
Laser Dissection Aids Pathologists, Patients
Jan 1, 1997 — WASHINGTON -- Researchers battling cancer and other debilitating diseases will soon have a new weapon in their arsenal. A technique developed at the National Institutes of Health (NIH) will enable pathologists to assess the molecular behavior of...
Alice's Restaurant at the End of the Universe
Jan 1, 1997 — INNSBRUCK, Austria -- Physicists are approaching a practical application for a remarkable property of photons, something Einstein called "spooky action at a distance." Science recently reported that researchers at the University of Innsbruck...
Chromium-Doped Crystal Shows Near-Infrared Tunability at Room Temperature
Jan 1, 1997 — Scientists at the City University of New York have grown a chromium-doped laser crystal that they say is tunable in the near-infrared spectral range at room temperature. The researchers demonstrated gain-switched, tunable operation of the Cr4...
New High-Rejection Optical Filters Aid in Comet Exploration
Jan 1, 1997 — Scientists at the University of Wisconsin and Acton Research Corp. of Acton, Mass., have developed two high-rejection optical filters for use in NASA's suborbital rocket. NASA will use the filters, which reject VUV and UV rays at 166 nm and 260 nm,...
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