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Research & Technology News
Corning and Gore Test Prototype Fiber
Apr 1, 2000 — Researchers from Corning Inc. of Corning, N.Y., and W.L. Gore & Associates Inc. of Newark, Del., have successfully tested Corning’s prototype InfiniCor fiber using Gore’s 850-nm vertical-cavity surface-emitting lasers. The fiber, which is optimized for 850-nm operation, displayed serial transmission at both Gigabit Ethernet speeds and 10 Gb/s. The team simulated real-world conditions by including multiple connectors in the cabled link. The setup transmitted an error-free eye...
Doping Leads to More Efficient Film
Apr 1, 2000 — A team from the Université Paris-Sud in Orsay, France, and Agfa-Gevaert NV in Mortsel, Belgium, has reported that formate ions enhance the efficiency of silver halide crystals nearly to their theoretical limit. The development, which, unlike...
Engineering Academy Names Century’s Top Achievements
Apr 1, 2000 — On behalf of the National Academy of Engineering, astronaut Neil Armstrong announced the most important engineering achievements of the 20th century at a National Press Club luncheon celebrating National Engineers Week 2000. From 105 achievements...
Epichem Produces Mid-IR Laser Diodes and LEDs
Apr 1, 2000 — Wirral, UK-based Epichem Ltd. has announced that it has fabricated mid-IR LEDs and laser diodes with its Admiral Consortium partners Aixtron AG, RWTH Aachen, Université Montpellier II and the IP-Czech Academy of Science. The Sb-based devices...
Far-Side Observation Predicts Solar Storms
Apr 1, 2000 — Astrophysicists from Solar Physics Research Corp. in Tucson, Ariz., and NorthWest Research Associates in Boulder, Colo., have developed a technique that may enable scientists to forecast solar storms more than a week in advance. Reporting in the...
IR Telescope Planned for Paranal
Apr 1, 2000 — The UK Visible and Infrared Survey Telescope project announced that it hopes to install a wide-angle telescope for the European Southern Observatory’s Very Large Telescope at Paranal Observatory in Chile. The 4-m survey telescope will be...
Lab Produces Record Crystal
Apr 1, 2000 — In support of the National Ignition Facility at Lawrence Livermore National Laboratory in Livermore, Calif., the lab’s researchers have produced a huge rapid-growth crystal. The 701-lb KDP crystal was grown in 52 days using an improved...
Lasers Continue Across Nuclear Fission Threshold
DIDCOT, UK -- DIDCOT, UK -- Scientists at the Rutherford Appleton Laboratory have demonstrated that today’s powerful lasers can replace nuclear accelerators in some experimental studies of nuclear and plasma physics. Along with more general experiments,...
MCI WorldCom Tests Optical Network
Apr 1, 2000 — The OPTera 1600G optical amplification system and OPTera LH platform from Nortel Networks, headquartered in Brampton, Ontario, Canada, were put through their paces in a commercial live trial by MCI WorldCom on a span linking Dallas and Longview,...
Nanostructures Produce Tuned IR Emitters
Apr 1, 2000 — Lithographically defined nanostructures may enable the production of tuned infrared "sensorchips" for gas analysis, say researchers from Ion Optics Inc. of Waltham, Mass., and NASA’s Jet Propulsion Laboratory in Pasadena, Calif. The team...
Nitres Reports High-Efficiency LEDs
Apr 1, 2000 — Researchers from Nitres Inc. of Westlake Village, Calif., have announced that they have developed an InGaN-based LED with a quantum efficiency of 20 percent. The near-UV/violet diode displays 405-nm emission, and has an output of 12 mW at 20 mA and...
Quantum Database Speeds Searches
Apr 1, 2000 — A potential advantage of storing information in the quantum phase of atoms is the speed of data retrieval. Theorists proposed in 1997 that a search algorithm could locate data in an N-state system in (root of)N steps, rather than N/2 steps under...
Quantum Dots Aim to Be Smart Pixels
SANTA BARBARA, Calif. -- SANTA BARBARA, Calif. -- Scientists at the University of California reported the development of a smart pixel device based on quantum dots that can collect, store and retrieve optical information in a single efficient unit. Optical...
Quantum-Well Lasers are Suited to Trace Analysis
Apr 1, 2000 — A team from Université Montpellier II in Montpellier, France, Laboratoire Central de Recherche in Orsay, France, and Université Ibnou Zohr in Agadir, Morocco, have described the production of high-temperature quantum-well lasers that...
Raman Method Identifies Pathogens Quickly
ROTTERDAM, Netherlands -- ROTTERDAM, Netherlands -- Raman spectroscopy and a confocal microscope may enable medical laboratories to dramatically reduce the time it takes to identify microorganisms so that doctors can make the right diagnoses. Researchers at Erasmus...
Researchers Produce Molecular Condensate
Apr 1, 2000 — A team from the University of Texas in Austin reported in the Feb. 11 issue of Science that it had created a Bose-Einstein condensate of rubidium molecules. Theorists have predicted that the condensates may exhibit phenomena such as molecular...
Researchers Unlock the Secrets of Diamonds
HONG KONG -- HONG KONG -- The captivating beauty of diamonds can overwhelm our sense of their utility. Still, their position as the hardest, most thermally conductive and most chemically resistant material known has a greater impact on us. Diamond coating...
Spectroscopy Finds Worm Tunnels in Apples
MILAN, Italy -- MILAN, Italy -- Worms that make their homes in apples may be facing a new enemy. Physicists have developed a spectroscopy-based instrument to characterize the inside of the fruit, identifying apples with worm tunnels, for example, for easy sorting...
Spectroscopy Reveals Fluorine’s Role in Rocket Propellant
CHAMPAIGN, Ill. -- CHAMPAIGN, Ill. -- A high-speed CCD camera and spectrometer played an important part in analyzing how fluorine gas enhances the combustion of boron in propellants -- an advance that could have an impact on the development of more energetic...
Teen’s Work on Laser Earns Semifinal Berth
Apr 1, 2000 — Aman Narang, a 17-year-old senior at The Harley School in Brighton, N.Y., thought that the computer model he was asked to develop at an eight-week summer program at the University of Rochester would be just busywork. Now it has earned him a...
Ultrafast Diffraction Reveals Melting
Apr 1, 2000 — An experimental setup by researchers from the University of California, San Diego, in La Jolla, and Universität Essen and Universität Hannover, both in Germany, has allowed them to detect and monitor the nonthermal melting of germanium by...
Water down the Drain Leads to Black Holes in the Lab
Apr 1, 2000 — Archimedes, the famous story goes, cried, "Eureka!" and leapt from his overflowing bathtub, having discovered the principle of buoyancy. But the drain has much to offer, too. Physicists Ulf Leonhardt and Paul Piwnicki of the Royal Institute of...
Aircraft Prepared for Antimissile Laser
Mar 1, 2000 — Over the next 18 months, a 747-400 freighter aircraft in Wichita, Kan., will be modified to destroy ballistic missiles in their boost phase at a range of hundreds of miles. The freighter, built by Boeing of Seattle for the US Air Force’s...
Artificial Vision Lets Blind See
NEW YORK -- NEW YORK -- After more than 25 years of total blindness, a 62-year-old retired state worker can discern shapes in black and white, thanks to an artificial vision device developed at the Dobelle Institute Inc. Many scientists, physicians and...
Fluorescence Gets Easier to Measure
BALTIMORE -- BALTIMORE -- Measurements of fluorescence lifetimes provide important information about fluorophores that is not available from simple intensity measurements. Lifetimes in the nanosecond range typically are determined by observing the decrease in...
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