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Lasers News
NASA to Study Trees With Multibeam Laser
May 1, 1997 — NASA has approved a $59.8 million project to study the distribution of the Earth's forests using a multibeam laser. The study is part of NASA's ambitious Mission to Planet Earth, a multipronged plan to improve the accuracy of geophysical measurements that are derived from satellite observations. The space agency plans to launch in the years 2000 and 2001 two small satellites that will be equipped to provide the first standing count of the Earth's trees. In addition, the satellites will assess...
Ti:sapphire Laser Amplifier Produces 5 W Average Power
May 1, 1997 — Scientists from Quantronix Corp. and the City University of New York's Center for Advanced Technology have developed a femtosecond Ti:sapphire laser amplifier system that generates an average power output of 5 W. The Titan comprises a regenerative...
Aluminum-Free Diodes Offer Doubled Power Potential
Apr 1, 1997 — Researchers at the University of Wisconsin-Madison and Coherent Inc. have produced diode lasers with aluminum-free active areas, which they expect will operate more reliably than AlGaAs-active diodes and will provide roughly twice the power. Writing...
CLEO/QELS Papers To Highlight New Technologies
Apr 1, 1997 — Organizers of this year's Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference (CLEOQELS) say they have received 1490 submissions for technical papers, 14 percent more than last year. Hot topics include a...
High-Power Quantum Cascade Laser Works, Chilled, in the IR
Apr 1, 1997 — Researchers at the University of Houston's Space Vacuum Epitaxy Center and Sandia National Laboratories have developed high-power infrared semiconductor lasers that combine standard diode laser and quantum cascade laser technologies. The research...
Laser Radar Watches the Friendly Skies
Apr 1, 1997 — Rain, fog, high winds and snow are notorious for ruining air travel schedules. Not only do these conditions inhibit the smooth (and tightly scheduled) flow of aircraft, but they add to the air traffic controller’s burden. Laser radar research under...
Researchers Use Lasers To Make Photonic Bandgap Structures
Apr 1, 1997 — Photonic bandgaps are three-dimensional structures that can reflect electromagnetic radiation in a band of frequencies propagating in any direction. Scientists from the Max Planck Institute for Biophysical Chemistry have fabricated such structures...
Team Begins Building Megawatt Airborne Laser
Apr 1, 1997 — The US Air Force has granted approval for construction of the first laser hardware for the $1.1 billion military Airborne Laser system. Boeing, TRW and Lockheed Martin are building the 747-based system, which will use a high-energy chemical oxygen...
Diode Lasers Sing Spectroscopy's Tune
Mar 1, 1997 — Environmental issues such as global warming, ozone depletion and photochemical air pollution have increased concern about how pollutants affect the environment. This has led to an increased emphasis on detecting pollutants, understanding their...
FDA Approves Summit's Ophthalmic Excimer Laser
Mar 1, 1997 — The US Food and Drug Administration (FDA) recently gave Summit Technology Inc. of Waltham, Mass., approval to market the SVS Apex Plus excimer laser system for the treatment of mild to moderate nearsightedness, corneal scars and disorders, and...
Joint Effort Aimed at Outpatient Vascular Lesion Market
Mar 1, 1997 — A strategic alliance between medical-laser manufacturer Laserscope of San Jose, Calif., and Medical Alliance Inc. of Irving, Texas, will focus on marketing Laserscope's Aura laser system for the office-based treatment of vascular lesions. Medical...
Laser-Induced Fluorescence Fires Up Engine Research
Mar 1, 1997 — As the world's sensitivity to environmental pollution increases, it is becoming increasingly important to understanding the overall nature of combustion. They key to this knowledge is precise and detailed measurement of the temperature, distribution...
Candela Receives Federal Approval for Skin-Resurfacing Laser
Feb 1, 1997 — The US Food and Drug Administration has approved Candela Corp.'s Er:YAG Skinlight laser for marketing in the US. The Wayland, Mass.-based company said that the device provides high average power and minimal thermal damage to skin. The company also...
Crystal Simulation Shows Promise in High-Efficiency Light Bending
Feb 1, 1997 — CAMBRIDGE, Mass. -- A photonic crystal specially designed to bend light sharply with near-perfect transmission could be the key to further miniaturization of optical computer chips and lasers, according to the scientists at the Massachusetts...
Excimer Laser Sheath Holds Promise for Pacemaker-Lead Removal
Feb 1, 1997 — Spectranetics Corp. of Colorado Springs, Colo., has filed an application with the US Food and Drug Administration for premarket approval of its excimer Laser Sheath for removal of pacemaker and implantable cardioverter defibrillator (ICD) leads. The...
Fiber-Free Laser Communications Soar to 'Unheard of' Heights
Feb 1, 1997 — When telecommunications companies first looked for solutions to the overcrowded world of wired, electronic communication, coherent light and fiber optics were there. Fiber optics brought high-bandwidth communications without the electromagnetic...
High-Power Diode Lasers Earn a New Image
Feb 1, 1997 — The growth and development of continuous-wave high-power diode lasers in the last few years has been phenomenal, enabling many advances in a wide range of applications. Diodes’ efficiency, compactness and cost-effectiveness make them an excellent...
Laser Gyro To Monitor Rotation of the Earth
Feb 1, 1997 — OBERKOCHEN, Germany -- Carl Zeiss has built what it calls the world's largest ring-laser gyro. Designed for measuring the Earth's rotation, the device will be installed in a subterranean cave on the Banks Peninsula in New Zealand early this year....
Quantum Dot Lasers Emerge from Semiconductor Rejects
Feb 1, 1997 — OTTAWA -- With an eye toward more powerful and smaller diode lasers, researchers at the National Research Council of Canada in Ottawa recently turned something semiconductor manufacturers consider undesirable into quantum dot lasers capable of...
Laser Fusion: An Old Dream Nears Realization
Jan 1, 1997 — When completed in 2002, the National Ignition Facility will culminate more than a decade of research on laser ignition: the controlled implosion of a small, hydrogen-isotope-filled target by laser beams of sufficient energy and quality to create...
Microlasers Can Anticipate Expanding Market
Jan 1, 1997 — The air-cooled argon-ion laser remains the most widely used source OEM applications requiring blue or green light. However, its shortcomings in efficiency, size, operating life and cost have inhibited the growth and development of applications....
PC-Based Laser Analyzers: New Uses Require Improved Devices
Jan 1, 1997 — Over the past few years the beam-profile quality of lasers has risen dramatically. Nevertheless, competitive pressures and demanding applications require even higher beam quality and are pushing the capabilities of many lasers. The only way to...
Russian Laser at Duke University Pumps out UV, Gamma Rays
Jan 1, 1997 — DURHAM, N.C. -- After settling in at Duke University, the Russian free-electron laser (FEL), has been brought to life emitting UV beams. The OK4 optical klystron FEL, developed at the Budker Institute of Nuclear Physics in Novosibirsk, Russia, was...
Boeing Wins $1.1 Billion Contract to Build Laser-Armed Warplane
Dec 1, 1996 — The US Air Force awarded a $1.1 billion contract to Boeing Defense Space Group to manufacture a prototype laser-armed warplane that would target enemy ballistic missiles. The plane, a modified 747 freighter, will carry a weapons-class laser that can...
Candela Medical Laser Systems Approved for Use in Japan
Dec 1, 1996 — Japan's Ministry of Health has approved two laser systems developed by Candela Corp. of Wayland, Mass., for the treatment of skin lesions. The devices, the AlexLAZR and the PLTL Pigmented Lesion/TATULAZR, use the company's alexandrite laser...
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April 2024
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