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(38,313 articles)
Popular News
Flir Contracts Exceed $25 Million for Thermal Imaging
Jan 1, 2002 — The UK Ministry of Defence has awarded Flir Systems Inc. of Portland, Ore., a contract of more than $12 million. The firm will supply the Royal Air Force with the Star-Q multisensor airborne imaging systems to upgrade the SeaKing search-and-rescue helicopter fleet. The Royal Australian Air Force has granted the company a contract of more than $4 million to provide Safire II airborne imaging systems for its P-3C fixed-wing aircraft for long-range surveillance and other missions. Flir will...
Polymer Display to Benefit Covert Operations
Jan 1, 2002 — The National Imagery and Mapping Agency, through the National Technology Alliance Program, has selected Cambridge Display Technology to develop a prototype handheld red/near-IR monochrome light-emitting polymer display, designated as a covert red/IR...
Center Focuses on Miniature Cooling Devices, Processes
Jan 1, 2002 — To help industry develop miniature cooling technologies, Purdue University is forming a National Science Foundation Industry/University Cooperative Research Center, enlarging the scope of its former Compact High-Performance Cooling Technologies...
Magnetic Ring Stores Cold Atoms
Jan 1, 2002 — Researchers at Georgia Institute of Technology in Atlanta have demonstrated a magnetic storage ring for the control of 87Rb atoms. The device, called the Nevatron, may find application as an interferometric gyroscope for aircraft guidance or as a...
Spectra-Physics: Neutral Position on Buyout Offer
Jan 1, 2002 — A special committee appointed by the board of directors at Spectra-Physics Inc. in Mountain View, Calif., has taken a neutral position on a Nov. 16 offer by parent Thermo Electron Corp. of Waltham, Mass., to purchase all outstanding Spectra-Physics...
GSI Lumonics Inc. Announces Sale of Perkins Elmer Shares and Litigation Court Decision
KANATA, Ontario, Dec. 10 -- GSI Lumonics Inc. announces it has completed the sale of 1,398,166 shares of common stock of PerkinElmer, Inc. The PerkinElmer shares resulted from the conversion of GSI Lumonics’ common stock holdings in Packard BioScience Company, which was...
Crystal Growth Enables Lattice Control
Jan 1, 2002 — A team of researchers at the University of Minnesota in Minneapolis has devised a crystal engineering technique that promises to enable the design of organic structures at the lattice level. The group already has demonstrated the growth of a crystal...
Geologists ID Asteroid, Assess Mars
Jan 1, 2002 — Researchers who gathered at the planetary geology session at the Geological Society of America's annual meeting in Boston in November had been looking as much to the skies as at the ground beneath their feet. By investigating the 1- and 2-µm...
40-W Light Alters Nanoparticles
Jan 1, 2002 — Nanoparticles are finding applications in biological and chemical sensing, but it has been difficult to produce particles of different and nonspherical shapes. A team at Northwestern University in Evanston, Ill., however, has reported a...
Laser-Based Cooler Refrigerates by 13 K
Jan 1, 2002 — Most of us envision lasers cutting through plate steel or vaporizing tissue, but they also can cool molecules and atoms. A team at the University of Queensland in Brisbane, Australia, hopes to use this phenomenon to create a laser-based solid-state...
Short Pulses Show Absolute Phase Results
Jan 1, 2002 — Absolute phase, the phase of a carrier with respect to the envelope of a pulse, theoretically has significant effects on intense, nonlinear laser-matter interactions, but proving that the effects actually occur has posed a problem because of...
Near-Field Microscopy Probes Quantum Dots
Jan 1, 2002 — Near-field optical microscopy is enabling researchers at the University of Michigan in Ann Arbor and at the Naval Research Laboratory in Washington to investigate the fundamental physical characteristics of quantum dots. The work will lead to a...
Violet LED Points the Way to VCSELs
Jan 1, 2002 — The III-nitrides have demonstrated their potential as solid-state sources of violet and near-UV light, but to fully realize their benefits for applications in printing, data storage and communications, it will be necessary to adapt them to...
Laser Beams Link Satellites
Jan 1, 2002 — The European Space Agency's Artemis satellite and the Centre National d'Etudes Spatiales' observation satellite, SPOT 4, established a satellite laser data link last November. The link used a 60-W, 850-nm laser diode from SDL Inc., which is now part...
Photonic Crystal Lattice Controls Laser Polarization
Jan 1, 2002 — By applying a photonic crystal lattice and changing the shape of the unit cell structure, researchers in Japan have developed a surface-emitting laser that promises higher output powers and better control of the lasing modes than either...
Direct Laser Interferometry Forms Magnetic Nanodots
Jan 1, 2002 — Laser-written compact disks have nibbled at market share for magnetic storage media. Could lasers be aimed next at enabling advanced magnetic media for computer hard drives? Russian and American scientists are collaborating on a way to pattern...
Exposing Photon-Photon Scattering
Jan 1, 2002 — It is intuitive to think of light as interacting with matter and not with itself, but this ignores the predictions of physics, which hold that photon-photon scattering is possible. Researchers at Umeå University in Umeå and at Chalmers University of...
Setup Offers Entangled Pairs of 856-nm Photons
Jan 1, 2002 — As technological improvements enable the controlled manipulation of smaller elements, the prospects for quantum computing become more realistic. Now researchers have demonstrated a solid-state source of entangled photon pairs, a key component for...
Polarization Defines Nanowires
Jan 1, 2002 — Researchers at Martin Luther Universität Halle-Wittenberg and Fraunhofer Institute for Mechanics of Materials, both in Halle, Germany, have demonstrated a technique that may lead to novel photonic devices. Heinrich Graener, a professor of physics at...
Photonic Crystal Fiber Enables Optical Clock
Jan 1, 2002 — Atomic clocks are already the most accurate timepieces on the planet, but a new version promises accuracy 1000 times better than the current cesium-based ones. It employs a narrow optical transition in a single, laser-cooled, trapped 199Hg+ ion, and...
Fast Ignition Boosts Neutron Counts
Jan 1, 2002 — In another step toward realizing the dream of fusion energy, researchers investigating fast-ignition inertial confinement fusion have produced 10 times the neutron count compared with that by inertial confinement alone. The work promises clean...
IR Blind-Spot Detection Testing Extended
Jan 1, 2002 — Autosense Ltd. of Denver and Ford Motor Co. of Dearborn, Mich., have agreed to expand testing of a low-cost blind-spot detection system that uses low-power IR lasers to locate vehicles in adjacent lanes. The Autosense-owned system, called...
Optical Sensor May Aid War on Bioterrorism
Jan 1, 2002 — Bioterrorism, once an abstract threat in the US, became reality in 2001. But even before the highly publicized outbreak of anthrax infections, scientists knew that they needed a sensitive, on-site technique for detecting trace amounts of deadly...
Single Atom Probes Standing Wave
Jan 1, 2002 — A probe composed of a single calcium ion has produced one of the most precise measurements of the three-dimensional structure of a light-wave field. Researchers at Max Planck Institut in Garching, Germany, isolated the atom in a radio-frequency trap...
Crystal Traps Light
Jan 1, 2002 — A year ago, two research teams made big news by slowing the propagation of light through a vapor trap to a virtual stop. Now a group led by Philip R. Hemmer of the Air Force Research Laboratory at Edwards Air Force Base, Calif., and M. Selim...
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August 2024
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