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(38,291 articles)
Popular News
Laser Scans Circuits for Flaws
ALBUQUERQUE, N.M. — Researchers at Sandia National Laboratories have designed a method to fault-test integrated circuits quickly from the back using a laser. Light-induced voltage alteration scans a laser over a chip and watches for voltage changes. It improves both the speed and accuracy of back-of-the-chip testing. Focused ion beam cross section (above left) shows the short from metal 1 to metal 2. Thermally induced voltage alteration locates a metal short (above right, end of the dark vertical line). Photos...
Grating May Improve Spectrometers
TROY, N.Y. — Spectrometer manufacturers seeking to reduce the size and cost of their instruments may benefit from an innovation utilizing microelectromechanical systems technology. InterScience Inc. has developed a compound optical grating that could provide...
Laser Evaporation Yields Nanosize Particles
Sep 1, 1999 — Using a transverse-flow 4-kW CO2 laser, a group of scientists from F.-Schiller University in Jena, Germany, produced nanosize zirconia particles. The particles are prized for their extremely small dimension and shape. The group used two Q-switching...
Laser Maps Mars Topography Five Meters at a Time
CAMBRIDGE, Mass. — After more than 120 million measurements, the Mars Global Survey Spacecraft has given researchers more information on the topography of Mars than is known about Earth. The data -- gathered by the Mars Orbiter Laser Altimeter -- include topographical...
Combined Spectroscopies Simplify Oil Detection
ERLANGEN, Germany -- ERLANGEN, Germany -- Mineral oils and fuels keep the world going, but they may also severely contaminate the ground and water. Laser-induced fluorescence spectroscopy has become a reliable tool for detecting such contamination, particularly for in...
Laser Yields Real-Time Glimpse of Water Molecules
PARIS -- PARIS -- Using a homemade ultrafast laser, researchers have tinkered with liquid water molecules to achieve real-time observation of atoms flirting. Teams from the Centre National de la Recherche Scientifique -- one at the Université Pierre...
Underwater Sensor Needs No Calibration
MISSOULA, Mont. — Researchers at the University of Montana have developed an autonomous chemical sensor that can be used in long-term studies of CO2 dynamics within bodies of water.Unlike most sensors, the fiber optic-based Submersible Autonomous Moored Instrument...
Slow It Down
Sep 1, 1999 — For the second time in six months, a team of researchers has succeeded in slowing laser light to a sluggish pace. Michael Kash and his colleagues at Texas A&M University in College Station heated a cloud of rubidium gas to 87 oC, then targeted a...
Light Scattering Measures Subangstrom Roughness
PORTLAND, Ore. -- PORTLAND, Ore. -- Hard disk drive manufacturers are looking for ways to increase storage capacity on the same hard drive. One way to accomplish this is to manufacture disks with ultrasmooth surfaces, placing requirements on the hard disk of the...
Superconductor ’Eyes’ IR Wavelengths
Sep 1, 1999 — A superconducting device that detects individual photons at longer wavelengths than was previously possible could have a far-reaching impact on advances in telecommunications and IR astronomy. Designed jointly by a researcher at the University of...
New Satellite Tools Sharpen Hurricane Images
Aug 31, 1999 — MADISON, Wis., Aug 31 -- In an attempt to improve current early warning systems, forecasters across the US are using new visualization tools to examine in detail the anatomy of typhoons and hurricanes. What we're doing is fusing together images...
Palomar Moving to New Facility
Aug 31, 1999 — LEXINGTON, Mass., Aug. 31 -- Palomar Medical Technologies Inc. is moving to from Lexington to Burlington, Mass. Under our new agreement with Massachusetts General Hospital (MGH), their researchers will be working with our scientists on-site at the...
Chandra Delivers First Images
Aug 30, 1999 — CAMBRIDGE, Mass., Aug 30 -- The Chandra X-ray Observatory, NASA's newest and most powerful x-ray telescope, has delivered its first images. Chandra produced an enhanced view of the Cassiopeia A Supernova Remnant using a 5000-s exposure of the...
Laser Scanning System Aids in Correcting Myopia, Astigmatism
Aug 30, 1999 — SAN FRANCISCO, Aug. 30 -- A new excimer laser system employing a flying spot effectively corrects low to moderate nearsightedness and astigmatism, according to a report in the journal of the American Academy of Ophthalmology. Marguerite B. McDonald,...
Kollmorgen Names Head of Industrial, Commercial Group
Aug 30, 1999 — WALTHAM, Mass., Aug. 30 -- Kollmorgen Corp. has elected Willy L. Verbrugghe corporate vice president and president of the company's Industrial and Commercial Group. The group includes Kollmorgen's motion control operations in New York,...
Fujifilm Reports Breakthroughin Miniature Aspherical Lens
Aug 27, 1999 — ELMSFORD, N.Y., Aug. 27 -- Fuji Photo Film USA Inc. announced that it has developed the world's smallest all-glass aspherical lens for use in digital cameras. The company will employ a new glass-injection mold process to mass-produce the...
Orbotech Wins $2.2 Million Order from PWC
Aug 27, 1999 — YAVNE, Israel, Aug. 27 -- Orbotech Ltd. has received a $2.2 million order for automated optical inspection systems from PWC, a circuit board manufacturer based in Taiwan. Commenting on the order, Asher Levy, managing director of Orbotech Pacific...
Philips Display Unit Names CFO for Joint Venture
Aug 27, 1999 — SAN JOSE, Calif., Aug. 27 -- Philips Flat Display Systems (FDS) has appointed Ron Wirahadiraksa senior executive vice president, CFO, and joint representative director of LG.Philips LCD, the joint venture between LG Electronics Inc. and Royal...
AT&T to Buy Brazilian Telecom Company
Aug 26, 1999 — NEW YORK, Aug. 26 -- AT&T has agreed to buy the telecommunications company Netstream, based in Brazil. AT&T plans to initially invest $300 million in Netstream, which provides high-speed voice, data, video and Internet services to the corporate...
Candela Revenue, Profits Set Records
Aug 26, 1999 — WAYLAND, Mass., Aug. 26 -- Candela Corp. announced that revenues for the fourth quarter of fiscal 1999 rose to a record $18.7 million, while earnings hit a record $3.3 million, or 50 cents per diluted share. The company posted revenues of...
Space Imaging Establishes South American Presence
Aug 26, 1999 — DENVER, Aug. 26 -- Space Imaging has created a wholly owned subsidiary, Space Imaging Latin America, to receive and process satellite imagery collected by the Indian Remote Sensing (IRS) satellites over the Latin American regions. A ground receiving...
Corning Multimode Fiber Transmits at Gigabit Ethernet Speeds
Aug 25, 1999 — CORNING, N.Y., Aug. 25 -- Corning Inc. reports that its InfiniCor multimode fiber has transmitted over 3000 m at Gigabit Ethernet speeds in the 850-nm window. Corning says that the demonstration of the 850 nm optimized 50 µm fiber betters...
University of Rhode Island Gets Laser Prototyping System
Aug 25, 1999 — KINGSTON, R.I., Aug. 25 -- DTM Corp. has installed a new laser Sinterstation 2500plus system at the University of Rhode Island's Rapid Manufacturing Center (URIRMC). The university plans to use this third-generation rapid prototyping and...
OCLI, Subsidiaries Report Earnings Gains
Aug 25, 1999 — SANTA ROSA, Calif., Aug. 25 -- Optical Coating Laboratory Inc. announced that revenues for the third quarter of fiscal 1999 totaled $89.9 million, an increase of 33 percent over third quarter 1998 revenues of $67.3 million. Included in...
Congress Ponders Cuts in R&D Programs
Aug 24, 1999 — WASHINGTON, Aug. 24 -- When the US Congress returns from its August recess, it will face a number of proposals for fiscal 2000 that would cut federal support of research and development programs, according to a report by the American Association for...
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