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(38,291 articles)
Popular News
Military Laser Gets Ready for Industry
URBANA, Ill. -- URBANA, Ill. -- The chemical oxygen-iodine laser technology that is the basis of the US Air Force’s Airborne Laser aircraft could soon be harnessed for such commercial applications as dismantling and decommissioning nuclear power plants, capital shipbuilding and repair, and even drilling oil wells. First demonstrated in the 1970s, this technology involves mixing chemicals such as potassium hydroxide and hydrogen peroxide in liquid form with chlorine gas to create excited oxygen. A...
Lasers Quiet Mirrors
Dec 1, 1999 — Researchers at the École Normale Supérieure and Université Pierre et Marie Curie in Paris reported cooling a mirror with laser light. Brownian motion from internal thermal noise is the greatest impediment to the accuracy of...
Nobel Prize Recognizes Ultrafast Revolution
STOCKHOLM, Sweden -- STOCKHOLM, Sweden -- The Royal Swedish Academy of Sciences has awarded the 1999 Nobel Prize in chemistry to Ahmed H. Zewail, a professor of chemistry and physics at the California Institute of Technology in Pasadena. The award, which will be...
New Laser Could Be Alternative to Laser Diode
LAPPEENRANTA, Finland -- LAPPEENRANTA, Finland -- The use of lasers for materials processing is on the rise in Nordic countries, demonstrated not only by an increasing number of installed high-power lasers, but also by a growing attendance at the biennial Conference on...
Nortel Has 6.4-Tb/s Optical Platform
Dec 1, 1999 — Nortel Networks Corp. of Paignton, UK, presented a scalable 40- to 80-Gb/s optical Internet platform during Telecom ’99 in Geneva. The system, which is designed to connect 2500 backbone routers on a fiber pair, supports up to 80 wavelengths...
Proteins Key to Plants’ Response to Light and Shade
Dec 1, 1999 — An international research team announced that it has identified the protein dynamics that control plants’ response to light and shade. The study, which appeared in the Oct. 7 issue of Nature, promises to lead to the engineering of more...
Fiber Amplifier Pumps Reach 200-mW Level
Dec 1, 1999 — Scientists announced in the Sept. 20 issue of Applied Optics that they have fabricated 200-mW, 980-nm pump laser modules for erbium-doped fiber amplifiers. The diode lasers are coupled to single-mode fiber without epoxy or solder, making them...
Laser System Inspects Space Plane
Dec 1, 1999 — Lockheed Martin’s Tactical Aircraft Systems in Fort Worth, Texas, has applied its LaserUT ultrasonic inspection system to the development of the X-33 reusable launch vehicle. The system, which is intended to detect horizontal defects in...
New Spectroscopy Technique Detects Trace Samples
GAITHERSBURG, Md. -- GAITHERSBURG, Md. -- A new approach to surface spectroscopy has proved 100 times more sensitive than current methods and may eventually be capable of identifying a strand of a deadly virus or a single particle of explosive residue. Spectroscopy in...
Team Produces Tunable Solid-State Blue Laser
Dec 1, 1999 — In a collaboration between the City University of Hong Kong and Shandong University, both in China, scientists have produced tunable, continuous-wave blue light with a solid-state laser. The results of the study, which appeared in the Sept. 27 issue...
Two-in-One Laser
MURRAY HILL, N.J. -- MURRAY HILL, N.J. -- Researchers at Bell Laboratories described in the Oct. 22 issue of Science a semiconductor quantum cascade laser that emits light at 6.33 or 6.5 µm with opposite bias polarities. Bell Labs’ parent company, Lucent...
JDS Uniphase Plans Merger with Longtime Supplier OCLI
Dec 1, 1999 — JDS Uniphase Corp. of San Jose, Calif., and Optical Coating Laboratory Inc. (OCLI) of Santa Rosa, Calif., have signed a merger agreement under which OCLI will operate as a wholly owned subsidiary of JDS Uniphase. The companies expect the $2.8...
NTT Plans to Eliminate 20,000 Jobs
Dec 1, 1999 — Nippon Telegraph & Telephone Corp. (NTT) of Tokyo announced a restructuring plan that would cut about 20,000 jobs by March 31, 2003. The company, which reported a work force of 224,000 in March 1999 and which has not submitted the final plan to...
Longtime Optics Maker Dies
Dec 1, 1999 — John L. Plummer, 84, co-founder of Plummer Precision Optics Co. of Pennsburg, Pa., died Oct. 31. He was best known for helping to develop precision optics for the US Army during World War II. In September, Plummer, his company and several key...
Planet Might Be Orbiting Binary Pair
Dec 1, 1999 — Researchers with the Microlensing Planet Search project have found evidence of the first known circumbinary planet, an object of about three times the size of Jupiter orbiting a pair of stars nearly 28,000 light-years from Earth. The findings of the...
Roper Announces Acquisitions
Dec 1, 1999 — Roper Industries Inc. of Bogart, Ga., has approved the purchase of Eastman Kodak Co.’s Motion Analysis Systems Div. in San Diego. The company expects the $51 million acquisition to be completed by the end of 1999. It effected a $9...
Clouds in the Crystal Ball
Dec 1, 1999 — An expert is someone who can accurately predict how a certain technology will progress in the next 12 to 18 months. An authority can extend the prediction relatively accurately to five years or so. A visionary looks ahead 10 years or more and is...
The Photon Connection
Dec 1, 1999 — Wearable, miniature computers that moonlight as movie viewers with nearly unlimited selections. Enough bandwidth to simultaneously connect every living person through just one optical fiber. These are the applications that photonics should enable by...
Photonics Gets Personal
Dec 1, 1999 — The last time the millennial clock rolled over, the only individuals that required some stamp of personal identification sat on thrones. Signet rings and hot wax made a simple task of identifying the agents of a king and verifying official business....
Photovoltaics Grows Up
Dec 1, 1999 — Long dismissed by some pundits as expensive and impractical, photovoltaic cells, also known as solar cells, are a popular way to generate electricity in remote areas. John Benner, a researcher at the National Renewable Energy Laboratory in Golden,...
Sensing the Century
Dec 1, 1999 — The Deep Space 2 microprobe, which recently slammed into Mars, only hints at what’s possible in the next century as smart sensors merge with biological and chemical systems, according to Barbara Wilson, chief technologist and director of...
Arkansas Produces Engineers for Business
Dec 1, 1999 — Two new master’s degree programs at the University of Arkansas in Fayetteville offer an interdisciplinary program designed to better prepare students for entry into high-tech industry. The microelectronics-photonics and applied physics degree...
AlliedSignal, Honeywell Must Sell Avionics Businesses Before Merger
Dec 1, 1999 — AlliedSignal Inc. of Morristown, N.J., and Honeywell Inc. of Minneapolis must divest themselves of elements of their avionics businesses to win approval for their $16 billion merger, according to terms of a settlement with the US Department of...
Corning, Fibercore Settle Patent Dispute
Dec 1, 1999 — Corning Inc. of Corning, N.Y., announced that it has settled the patent infringement suit it had filed against Fibercore Ltd. of Southampton, UK. The companies signed a consent judgment in which Fibercore admitted infringing upon Corning’s...
EG&G Inc. Changes Name
Dec 1, 1999 — EG&G Inc. based in Wellesley, Mass., announced that it changed its name to PerkinElmer Inc., effective Oct. 26. The change reflects a focus on commercial markets and a move to develop under a recognized brand, the company said. EG&G acquired...
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