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(38,284 articles)
Popular News
Chinese Scientists Seek Release of Jailed Physicist
Apr 1, 1998 — After a Taiwan-born physicist recently pleaded guilty to passing classified information on nuclear weapons to China, a group of Chinese scientists launched an appeal to the US for his release. Scientists from the government-run Chinese Academy of Sciences said they were shocked to learn that Peter Lee had admitted to divulging sensitive information in trips to the country in 1985 and 1997. In a letter to the media they said the lectures Lee gave at the academy -- in which he allegedly divulged...
Optical Imaging of Cardiac Condition Aids Physicians
Apr 1, 1998 — Medical researchers from the University of Alberta in Edmonton, Canada, may be a step closer to understanding the causes of a severe cardiac condition known as ventricular fibrillation through a series of high-resolution movies that show how the...
Photonics Reaps What Farm Denizens Sow
Apr 1, 1998 — Lasers in factories, fiber bundles in operating rooms, even cameras sitting on computer monitors are common sights. Now, based on work being done at the University of North Carolina, optical systems could be found next to every silo or manure pile....
Airborne Laser Passes First Test
Apr 1, 1998 — Aircraft manufacturer Boeing Co. of Seattle has concluded the first series of wind tunnel tests on components crucial to the Airborne Laser. The weapon system is designed to destroy theater ballistic missiles in the initial phase of...
Optics Give Hard Drives a New Lease on Life
Apr 1, 1998 — The Winchester-style disk drive, nearing the limits for magnetic storage, has been given a new lease on life, thanks to optics. Computer hard-drive maker Seagate Technology and its Quinta Corp. subsidiary have combined optical switching, fiber...
New Fiber Offers Higher Speeds
Apr 1, 1998 — In an effort to meet the increasing demands of high-bandwidth communications networks, Corning Incorporated of Corning, N.Y., introduced its newest single-mode optical fiber at the Optical Fiber Communications Conference in February. Dubbed LEAF,...
Custom X-Ray Lenses Aid Astrophysical Imaging
Apr 1, 1998 — The National Research Council's Solid State Electronics Institute is producing custom optics for scientists who want to develop their own x-ray optical systems for astrophysical investigation or synchrotron radiation research. Researchers rely...
Diode-Pumped Kilowatt Laser Is Brighter, More Powerful
Apr 1, 1998 — With the goal of advancing diode-pumped solid-state laser technology by making lasers brighter and more powerful, TRW Inc. of Redondo Beach, Calif., introduced its newest diode array-pumped kilowatt laser at Photonics West. The company says this...
Apache Point's Telescope Nears Completion
Apr 1, 1998 — The final pieces of the Apache Point Observatory's new telescope have arrived, marking the beginning of a multiyear project to produce a three-dimensional picture of the universe. The delivery included the optics of one spectrograph and an...
Quantum Mechanical Transistor Promises Photonic Applications
Apr 1, 1998 — Scientists at Sandia National Laboratories in Albuquerque, N.M., have developed a quantum mechanical transistor that may increase the accuracy of optical detectors and energy spectrometers. The transistor takes advantage of a phenomenon described in...
Probes May Aid Retinal Surgery
Apr 1, 1998 — Industrial research projects aimed at manufacturing tiny optical probes may have repercussions in the tricky world of ophthalmic surgery. Peter Bryanston-Cross, a professor and researcher with the Optical Engineering Laboratory at the University of...
Spectroscopy Reveals Benefits of Ocean Particles
Apr 1, 1998 — Bioengineers at the University of Washington are using laser-scattering spectroscopy to determine whether carbon-based molecules in the ocean could play a role in the carbon cycle and, by extension, in moderating the greenhouse effect. Pedro...
Optical Lithography Creates Subangstrom Features in Silicon
Apr 1, 1998 — A group of researchers at the University of Texas has shown the world that conventional optical lithography can continue to produce ever smaller features on computer microchips without resorting to next-generation plasma laser, ion or electron...
Micromirrors Perform Telecom Task
Apr 1, 1998 — SScientists at Bell Labs, the R&D segment of Lucent Technologies in Murray Hill, N.J., have demonstrated a device that incorporates free-space optics and micromirrors to route and switch individual wavelengths transmitted simultaneously over...
Spectroscopic Technique Images Cell Physiology
Apr 1, 1998 — Chemists and physiologists from the University of Illinois at Urbana-Champaign have developed an imaging technique that relies on fluorescence spectroscopy to provide detailed information about a cell's physiology. The scientists combined...
New CCD Could Improve Telescope Resolution
Apr 1, 1998 — With few exceptions, charge-coupled devices have become the preferred method for imaging the universe. There has been one problem: Atmospheric changes such as high winds cause images to blur. To create clearer, more visible images, John Tonry and...
Quantum Cascade Laser Lights a Fire at Photonics West
Apr 1, 1998 — Lighting a match with a laser doesn't seem like that big a deal, unless it's done at room temperature using far-IR light from a diode laser. It was in such a fashion that the inventor of quantum cascade laser diode architecture, Federico Capasso of...
Medical Imaging Analysis Technology Used in Radar Applications
Apr 1, 1998 — Researchers from the National Imagery and Mapping Agency in Chantilly, Va., and BioComputer Research Inc. in Trion, Ga., have investigated an application for algorithms developed for medical sonogram image analysis. The algorithms had been used to...
Water Aids Laser Materials Processing
Apr 1, 1998 — According to an ancient Roman saying, single drops of water can penetrate rocks. Inspired by this wisdom, a group of Swiss researchers at the Polytechnic Institute of Lausanne has discovered that a clever combination of hydrodynamics and laser...
Scientists See Glimpses of Sun's Corona
Apr 1, 1998 — Researchers from the National Center for Atmospheric Research in Boulder, Colo., and other institutions aimed new detectors at the sun's corona during the Feb. 26 solar eclipse. Scientists hope to use the information gathered to improve...
Minnesota Moves to Limit Underwater Cameras
Apr 1, 1998 — The Minnesota Senate's Environment and Natural Resources Committee has taken the first step toward making it illegal to use underwater video cameras while fishing. The bill, which likely will be amended into a more far-reaching game-and-fish...
Bell Labs Achieves Transmission of a Terabit of Information
Apr 1, 1998 — Scientists from Bell Laboratories in Murray Hill, N.J., the R&D arm of Lucent Technologies, have reported a long-distance transmission of a terabit of information. Using an experimental ultrawideband optical-fiber amplifier, the researchers...
Air Force Tests High-Energy Laser Through Optical Fiber
Apr 1, 1998 — In tests conducted at Kirtland Air Force Base in New Mexico, scientists transmitted a high-energy laser beam through optical fiber. Scientists from the Research Laboratory's Directed Energy Directorate at Kirtland, the University of Illinois at...
White House Makes Appointments; Gibbons Resigns
Apr 1, 1998 — President Clinton recently announced his intention to nominate candidates for the posts of director of the Office of Science and Technology Policy and director of the National Science Foundation. Neal F. Lane, director of the National Science...
Eco-Optics:
Apr 1, 1998 — Since the 1980s, people have grown more aware of their surroundings, the impact of industry on the environment, and the environmentally redemptive qualities of advanced technology. Whether it's a UV lamp optimized to detect mercury and other...
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