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Research & Technology News

Spanish Physicists Focus on Fuzz
TERRASSA, Spain -- TERRASSA, Spain -- Fuzzballs on sweaters and other garments are an inescapable fact of life. They detract from a garment’s appearance and make it look old before its time. Now, at least, researchers in Spain have discovered a way to study them without squinting. A team at the Universidad Politécnica de Cataluña, which is located in Spain’s top textile-producing region, is studying pilling, the formation of bunches or balls of tangled fibers on the surface of a...
US Air Force Studies Fiber Lasers
Sep 1, 2000 — Scientists at the US Air Force Research Laboratory at Kirtland Air Force Base, N.M., are hoping to boost the output of fiber lasers into the kilowatt range. Under the Laser Integration Technology program within the Directed Energy Directorate, the...
What’s in that Hamburger?
HONG KONG -- HONG KONG -- Hamburger lovers beware! The next meat patty you eat may not be what you think it is. But help is on the way. Inspired by a documentary exposing the widespread sale of adulterated ground beef in the US, researchers at the University of...
X-Ray Scattering Reveals Electronic Properties
STANFORD, Calif. -- STANFORD, Calif. -- An x-ray technique for studying the fundamental properties of matter could help identify new materials for semiconductor lasers. Inelastic x-ray scattering uses the high-energy x-rays produced by particles accelerated to nearly...
1.8-W Diode to Pump Fiber Amplifiers
CANBERRA, Australia -- CANBERRA, Australia -- Researchers at Australian National University have created a high-power 980-nm diode laser specially designed to pump the erbium-doped fiber amplifiers crucial to high-bandwidth short-haul optical telecommunications networks....
Dopant Level Improves Organic LEDs
Aug 1, 2000 — A team from Ludwig Maximilian Universität in Munich, Institut Ackermannweg in Mainz and Universität Potsdam, all in Germany, has announced the results of a study of organic LEDs that may boost the efficiency and output of the devices....
Glasses Make Versatile Crystals
SOUTHAMPTON, UK -- SOUTHAMPTON, UK -- Photonic quasicrystals with complete bandgaps can be made in glasses that are typically used for fiber optic telecommunications. Researchers at the University of Southampton have shown that materials with a low refractive index,...
Gold Clusters Are Optically Active
ATLANTA -- ATLANTA -- Metals, as a rule, do not display optical activity. So researchers at the Georgia Institute of Technology were surprised to find that their gold nanocrystals did so intensely and across the spectrum. Gold nanoparticles already have found...
IR Imager Uses Missile Technology
WEST LAFAYETTE, Ind. -- WEST LAFAYETTE, Ind. -- A form of infrared imaging developed by the military for heat-seeking missiles is helping researchers rapidly identify catalysts that could improve chemical manufacturing processes and pollution-control systems. The imaging...
Laser Aims to Reduce Ceramic Costs
WEST LAFAYETTE, Ind. -- WEST LAFAYETTE, Ind. -- Because of their exceptional hardness, resistance to wear and stability at high temperatures, advanced ceramics are becoming popular for precision parts in aerospace, automotive and manufacturing industries. They are also...
Laser Display Challenges Cathode-Ray Tubes
ORLANDO, Fla. -- ORLANDO, Fla. -- A new display technology is looking to upstage the cathode-ray tube. Researchers at the University of Central Florida have developed a display that features a plastic screen peppered with crystalline powders that emit different...
Laser Spot Aims at Storage Market
MURRAY HILL, N.J. -- MURRAY HILL, N.J. -- A relatively simple solution to the problem of reducing a laser’s spot size using near-field optics may lead to an optical storage system that could store as much as 500 Gb/in.2 of data, up to 100 times current storage...
Lunar Glass Beads Offer Clues to Craters
BERKELEY, Calif. -- BERKELEY, Calif. -- Comets and asteroids have bombarded the moon and Earth over the last 3 billion years, leaving craters in their wake. But the frequency of these bombardments -- and whether periodic or episodic variations have occurred -- remains...
New Technology: Pen on Paper
LUND, Sweden -- LUND, Sweden -- Let’s face it. No matter how much technology advances in the computer world, many users still feel more comfortable with good old-fashioned pen and paper. Although a new pen technology developed by Anoto AB might not be the...
Old LPs Find New Use in X-Ray Optics
STOCKHOLM, Sweden -- STOCKHOLM, Sweden -- In trying to develop a cheap way to focus x-rays, perhaps it should be no surprise that researchers turned to German technopop group Kraftwerk for help. The scientists bought one of the band’s albums to cut up and form...
Plastic Film Makes for Light Travel
ALBUQUERQUE, N.M. -- ALBUQUERQUE, N.M. -- Moving mass into space is an expensive proposition. The Next Generation Space Telescope, tentatively scheduled for launch in 2008, will weigh 15 kg/m2 of mirror surface, lean compared with Hubble’s 250 kg/m2, but still not...
Polymers Improve Electro-Optics
SEATTLE -- SEATTLE -- Larry Dalton runs short treks into the future. It’s a world of unlimited bandwidth, a place with steerable microwaves where aircraft and ships are all wired with fiber optic cable. And Dalton is convinced that such a future...
Raman Spectroscopy Opens the Earth’s Core
Aug 1, 2000 — Researchers from the Carnegie Institution of Washington and Ecole Normale Supérieure de Lyon in France have announced the results of experiments that will enable geophysicists to better understand the rotation and magnetism of the...
Readers Bridge the Net and Print Gap
Aug 1, 2000 — A microelectromechanical scanning reader under development by Microvision Inc. of Bothell, Wash., promises to link print media to the Internet. The company has announced that it will ship samples of the device next year; it expects the readers,...
Silicon Crystal Is Cheap, Simple
TORONTO -- TORONTO -- Researchers in Canada and Spain have overcome the obstacles to develop a three-dimensional photonic crystal that can be easily manufactured on a large scale at a low cost. Fabricated with silicon, it meets the criteria needed for complete...
Sputtering Yields 3200-GHz Filter
Aug 1, 2000 — Advanced Lighting Technologies Inc. of Cleveland has announced that its subsidiary Deposition Sciences Inc. of Santa Rosa, Calif., has produced a 3200-GHz optical bandpass filter using its reactive sputtering coating technology. The filters will be...
Strip Coating Makes the Grade
Aug 1, 2000 — A study of the reformulated Opticlean strip coating, distributed by Dantronix Research and Technologies of Platteville, Wis., suggests that the product removes fresh surface contaminants from silicon wafers without leaving a residue. Researchers...
Arrays Advance DNA Detection
MEDFORD, Mass. -- MEDFORD, Mass. -- Researchers from Tufts University have devised a screening method using a bead-based fiber optic array that could dramatically increase the speed and sensitivity of DNA sampling. A new type of DNA microarray incorporates latex...
Coral Reefs Yield Fluorescing Dyes for In Vivo Labeling
MOSCOW -- MOSCOW -- Green fluorescent protein extracted from luminescent jellyfish has been used as a marker for gene expression and protein localization in a number of biological systems. Despite the widespread use of this fluorescing dye, little is known...
Dry Process Creates Clearer Fibers
CAMBRIDGE, Mass. -- CAMBRIDGE, Mass. -- Although today’s fiber optic cables may be able to handle today’s telecommunications traffic, the future will demand considerably more bandwidth. Trying to resolve an argument about how contamination sneaks into the...

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