Citations with the tag: LASERS
Results 1 - 50
- Boeing-Los Alamos team develop two-stage...
Klass, P.J. // Aviation Week & Space Technology; 11/14/88, Vol. 129 Issue 20, p113Reports that a Boeing Aerospace-Los Alamos National Laboratory team has developed a novel two-stage, radio frequency-driven free-electron laser (FEL) for the new Strategic Defense Initiative FEL demonstration facility in White Sands, N.M. Another contender is an induction-type FEL proposed by...
- Los Alamos free electron laser altered for higher-power tests.
Foley, T.M. // Aviation Week & Space Technology; 2/13/89, Vol. 130 Issue 7, p88Discusses the free electron laser at Los Alamos National Laboratory, which is being reconfigured for tests with a brighter, higher-current beam incorporating a photoelectric injector. The High Brightness Accelerator Free Electron Laser (Hibaf) experiment begins in April. Goals; Operation.
- Advances in induction-type FEL add to its antimissile potential.
Henderson, B.W. // Aviation Week & Space Technology; 5/8/89, Vol. 130 Issue 19, p81Discusses several key advances made in the induction type of free electron laser (FEL) at Lawrence Livermore National Laboratory that add to the FEL's potential as a strategic defense weapon and increase its flexibility and safety. Major components and operation; FEL program and design...
- U.S., Soviet scientists propose system to monitor laser Asats.
Foley, T.M. // Aviation Week & Space Technology; 5/15/89, Vol. 130 Issue 20, p31Discusses a proposal by US and Soviet scientists to monitor the firing of high-power lasers into space by putting simple detection devices near selected sites in each country to detect ground-based lasers capable of serving as anti-satellite weapons. Proposal; Joint effort urgings; Other means...
- SDI free electron laser faces cut in power, delay.
Foley, T.M. // Aviation Week & Space Technology; 5/22/89, Vol. 130 Issue 21, p22Reports that the Strategic Defense Initiative's ground-based free electron laser has dropped in priority as a candidate weapon system, and will be delayed and reduced in power to cut costs. The free electron laser is an SDI experiment planned to be built at White Sands, New Mexico. Changes and...
- Lasers highlight policy blindspots.
Fridling, B.E. // Bulletin of the Atomic Scientists; Jul/Aug1988, Vol. 44 Issue 6, p36Discusses the wide uses of lasers, and how they can blind people. Fighting for international limits on the use of blinding lasers in warfare.
- Lasers in dentistry: The future is here now.
Fridling, B.E. // Executive Health's Good Health Report; Sep92, Vol. 28 Issue 12, p1Comments on how laser technology promises to be less painful, less invasive and more precise than conventional dental surgery. Other medical uses of lasers; Estimates on the number of dentists worldwide who have acquired lasers; Treatment of periodontal disease; Light Amplification by Stimulated...
- Laser sheds new light on case.
Stansley, Joseph // FBI Law Enforcement Bulletin; Dec94, Vol. 63 Issue 12, p9Reports on the use of Laser light in photography to indicate the speed at which a motorcycle was travelling at the time of its collision in New Jersey.
- Laser treatment to go: Outpatient uses of ..
Farley, D. // FDA Consumer; Oct87, Vol. 21 Issue 8, p22Laser procedures on outpatient basis--ophthalmology, healing ulcers and skin defects. Use of lasers in gynecology; description of variety of lasers--endoscope, carbon dioxide, laser, argon laser and Nd:YAG laser. INSET: The laser..
- Laser Sources.
Farley, D. // Laser Focus World; Mar2009 Buyers Guide, p10The article lists suppliers of laser products in the U.S. including Laser Drive Inc. in Gibsonia, Pennsylvania, Physical Sciences Inc. in Andover, Massachusetts and Del Mar Photonics Inc. San Diego, California.
- Laser pointers.
Verrechia, Felice Philip // Media & Methods; Nov/Dec93, Vol. 30 Issue 2, p18Presents models of laser pointers. Laserex Ultrabright.
- `Matter wave' created with laserlike qualities.
Verrechia, Felice Philip // Machine Design; 03/20/97, Vol. 69 Issue 6, p20Reports that physicists at the Massachusetts Institute of Technology have created the first atom laser, a device analogous to an optical laser but emitting atoms of sodium rather than light waves. Coherency of the atoms; Ability to pinpoint over large distances with minimal spreading;...
- Zap that spud!
Verrechia, Felice Philip // Joe Weider's Muscle & Fitness; Sep92, Vol. 53 Issue 9, p26Reports that lasers can be used to peel potatoes and tomatoes, according to a `Time' magazine report. Benefits of using a laser; Process developed by Battelle Memorial Institute in Columbus; More.
- Getting deep.
Segal, Kim // Joe Weider's Muscle & Fitness; Dec92, Vol. 53 Issue 12, p54Discusses the use of low-level lasers to speed recovery from acute and chronic injuries. Noninvasive and nonsurgical laser treatment; Types of low-energy systems; Description of the laser; Stimulated energy needed to produce laser energy; Recommended training program for muscle recovery with a...
- Airborne Laser to track missiles in any weather and destroy them in boost phase.
McHale, John // Military & Aerospace Electronics; Feb98, Vol. 9 Issue 2, p1Reports on the U.S. Air Force Philips Laboratory scientists' use of commercial off-the-shelf electronics in designing an airborne laser to track and destroy theater ballistic missiles shortly after launch. Mounting on a Boeing 747 widebody jetliner; Deployment in the next century; Signal...
- Blue-green diode lasers.
Neumark, Gertrude F.; Park, Robert M. // Physics Today; Jun94, Vol. 47 Issue 6, p26Discusses the various aspects of blue-green diode lasers. Primary driving force behind efforts to develop blue-green diode lasers; Description of diode lasers; Operating principles of a semiconductor diode laser; Key to p-type doping technique; Carrier and optical confinement; Heat dissipation...
- Infrared laser illustrates another way to achieve gain.
Levi, Barbara Goss // Physics Today; Sep97, Vol. 50 Issue 9, p21States that the standard way to build a laser is to produce a population inversion between an upper and a lower energy level. Information about quantum cascade (QC) laser; Tunability of these lasers; Another type of QC laser.
- Free-electron lasers.
Heppenheimer, T.A. // Popular Science; Dec87, Vol. 231 Issue 6, p63Recent experiments have catapulted a new kind of laser into the position as No. 1 candidate for use as an anti-missile weapon in the `Star Wars' program. This free-electron laser has other potential uses, from aiding chemical research to furnishing an entirely new kind of propulsion for rockets.
- Shrinking LIDARs.
Free, John // Popular Science; Jul92, Vol. 241 Issue 1, p25States that scientists in the United States and Mexico are using a new compact Light Detection and Ranging (LIDAR) system to study air pollution above Mexico City. Data gathered will help researchers understand air pollution problems in other urban areas.
- Laser watchdog.
Stover, Dawn; Skerrett, P.J. // Popular Science; Jul92, Vol. 241 Issue 1, p26Discusses various laser systems developed at Cornell University and the Massachusetts Institute of Technology (MIT) that monitor toxic emissions. How detectors work; Potential benefits and capabilities.
- Mach 25 transporter.
Stover, Dawn; Beard, Jonathan D. // Popular Science; Mar93, Vol. 242 Issue 3, p35Comments on the Lightcraft, a concept vehicle designed by engineers at Rensselaer Polytechnic Institute (RPI), which will be powered by lasers or microwaves beamed to it from satellites orbiting Earth. Comments by Leik Myrabo, head of the RPI design team; Operational details.
- Laser lights may soon be blue.
O'Malley, Chris; Kantra, Suzanne // Popular Science; Jun93, Vol. 242 Issue 6, p47Explains how the red laser beams inside laser printers, optical disc drives and other devices could soon be turning blue. Findings that semiconductor lasers and light-emitting diodes (LEDs) operate more efficiently at blue wavelengths; Commercialization; Drive to use blue-light devices by IBM...
- Laser pointers aren't all that benign.
Moore, Amy Slugg // RN; Apr98, Vol. 61 Issue 4, p16Discusses the health risks which are associated with laser pointers. How the laser pointers are used; Information on the laser pointers causing permanent retinal damage in as little as two seconds.
- Lasers are making friends on the factory floor.
Winter, Drew // Ward's Auto World; May93, Vol. 29 Issue 5, p33Reports on the acceptance of lasers in the factory. Reliability and high uptime rates; Applications of lasers in the production line, engineering design and analysis and troubleshooting; Savings; Reluctance in the acceptance of lasers; Welding applications; Marking and scribing applications;...
- Search for blue laser nears end.
Winter, Drew // USA Today Magazine; Jun92, Vol. 120 Issue 2565, p12Studies a layered crystal structure developed at the University of Notre Dame as a potential material for creating a blue laser. Why a blue laser would be of technological and commercial value; How the researchers fabricated the structure.
- Superlights.
Winter, Drew // National Geographic World; Oct87, Issue 146, p22Description of lasers, their uses and how they work. Explains the development of the laser and its uses in industry and medicine.
- New uses for lasers.
Winter, Drew // Newsweek; 6/2/86, Vol. 107 Issue 22, p68Last week doctors described two new uses for lasers: to get rid of kidney stones and to replace stitches in many kinds of surgery.
- Silicon-based interminiband infrared laser.
Friedman, Lionel; Soref, Richard A.; Sun, Gregory // Journal of Applied Physics; 04/02/98, Vol. 83 Issue 7, p3480Presents information on a study to show the physical principles of operation of silicon-based quantum-parallel laser. Aims of the study; Methodology used in the study; What is a quantum-parallel laser; How the laser operates; Numerical estimates of transition rates; Information on emitter and...
- Effect of reflectivity at the interface of oxide layer on transverse mode control...
Huang, Yong-Zhen // Journal of Applied Physics; 04/02/98, Vol. 83 Issue 7, p3769Presents information on the effect of reflectivity at the interface of oxide layer on transverse mode control in oxide confined vertical-cavity surface-emitting lasers (VCSELs). Information on VCSELs; Details on the transverse mode control in oxide which confined VCSELs; Results from the study.
- Above-threshold longitudinal profiling of carrier nonpinning and spatial mobulation in asymmetric...
Bennett, A. J.; Clayton, R. D.; Xu, J.M. // Journal of Applied Physics; 04/02/98, Vol. 83 Issue 7, p3784Presents information on the above-threshold longitudinal profiling of carrier nonpinning and spatial modulation in asymmetric cavity lasers. Details on the increase of carrier densities; Information on the experiment; Results from the experiment.
- Laser applications.
Bennett, A. J.; Clayton, R. D.; Xu, J.M. // Popular Mechanics; Dec83, Vol. 160 Issue 12, p82The laser is quickly becoming the favorite tool of science, engineering, medicine and industry. In just five years, it has come out of the research center and into homes and offices. A look at present and future applications and technology.
- Beyond the blade.
Davis, C. // Popular Mechanics; Oct88, Vol. 165 Issue 10, p75Used in eye surgery since the early 1960s, lasers are being used in the full spectrum of operating room chores. Discusses how lasers are changing medical technology. INSET: Anatomy of an Excimer Laser..
- Safety fears focused on `healing' laser.
Hecht, Jeff // New Scientist; 6/13/92, Vol. 134 Issue 1825, p18Reports on fears by ophthalmologists in the United States over the use of lasers to correct long and short sight. They say large financial stakes involved in laser techniques may push safety questions aside; The two rival systems; Major concerns.
- Long-playing CDs get the blue light.
Hadfield, Peter // New Scientist; 8/8/92, Vol. 135 Issue 1833, p19Describes Sony's semiconductor laser that emits blue light. What the laser is based on; Description of its form; The light from Sony's laser which has a wavelength of 447 nanometers.
- Military laser beams in for a spot of car assembly.
Hecht, Jeff // New Scientist; 8/8/92, Vol. 135 Issue 1833, p19Reports on a portable laser originally designed to blind enemy sensors on future battlefields which is being adapted to help make cars. How General Motors hopes to use the laser; Description of the laser; Very reliable and fiber optics easily interchanged.
- Lasers designed to blind.
Hecht, Jeff // New Scientist; 8/8/92, Vol. 135 Issue 1833, p27Takes a look at the laser weapons that are quietly being readied for the battlefield. Lasers first reached the battlefield two decades ago in Vietnam; The Stingray, an antilaser for tanks and helicopters; Also developing defensive systems to protect eyes and sensors against attack by lasers. ...
- Laser teams in hot pursuit of blue light.
Hecht, Jeff // New Scientist; 8/22/92, Vol. 135 Issue 1835, p18Reports that three university groups have made devices similar to Sony's semiconductor laser that produces beams of blue light. None have made devices in as short a wavelength as the Japanese claim. What they are made from; Closely parallels the race to produce the first semi-conductor.
- Lasers too weak for optical computers.
Geake, Elisabeth // New Scientist; 9/5/92, Vol. 135 Issue 1837, p11Reveals that a lack of suitable lasers is holding up developments in optical computing. Most of the fundamental problems of optical computing have now been solved but lasers are not keeping up; Benefit of sending information by photons; It will take an estimated five years to have these available.
- How to take a `visible X-ray.'
Geake, Elisabeth // New Scientist; 12/5/92, Vol. 136 Issue 1850, p18Focuses on a new technique that may enable scientists to see through materials which scatter light strongly. How these `photon density waves' were created by researchers at the University of Pennsylvania, using a very rapidly pulsed laser; How this approach could be used to image the body;...
- Not liquid gold.
Geake, Elisabeth // New Scientist; 2/13/93, Vol. 137 Issue 1860, p18Reveals that scientists at the Tokyo Institute of Technology have developed a way of controlling liquid-crystal screens with laser light rather than electrical signals. Benefits of this development; How it applies to the ferroelectric display type of LCD; Research details.
- Making light work of IVF.
Mestel, Rosie // New Scientist; 2/20/93, Vol. 137 Issue 1861, p20Reports on the work by Yona Tadir, medical director at the Beckman Laser Institute at the University of California, Irvine, and colleagues at Cornell University on the applications of lasers at nearly every step of `in vitro' fertilization. Description of uses; Techniques; Key concern with lasers.
- The white heat of laser dentistry.
Douglas, Kate // New Scientist; 5/22/93, Vol. 138 Issue 1874, p26Discusses the use of lasers to drill dental patients' teeth. Official regulation on medical lasers in Britain; Ability to suppress pain; Lack of tests.
- Can Darth Vader clean up LA?
Mestel, Rosie // New Scientist; 6/26/93, Vol. 138 Issue 1879, p18Reports on the use of lasers in removing graffitis in Los Angeles. Development of method by Elsa Garmire of the University of Southern California's Center for Laser Studies; Comparison of cost with sandblasting and chemical removal.
- Tiny glass laser sheds more light than heat.
Pease, Roland // New Scientist; 10/21/95, Vol. 148 Issue 2000, p23Reports that the world's most efficient laser is made of glass fiber less than half a micrometer across or 500 times thinner than human hair. Measurement of output in microwatts; Comparison of efficiency to normal lasers; Description of the laser in its existing form.
- Laser healing.
Pease, Roland // Consumers' Research Magazine; Oct85, Vol. 68 Issue 10, p11Laser healing has become part of our lives in many ways. From early successes in treating skin and eye disorders, the 25-year-old laser has expanded into almost every area of surgery, from brain tumors to wart removal. How lasers work; types; treatments.
- Laser zaps tattoos.
Pease, Roland // Current Science; 10/6/89, Vol. 75 Issue 3, p14Reports on a laser technique that can remove tattoos without scarring.
- Many medical uses found for lasers.
Pease, Roland // Current Science; 3/30/90, Vol. 75 Issue 15, p13Reports on the use of laser beams to get rid of kidney stones. Other medical uses for lasers.
- Doctors take a shine to lasers.
McPhee, A.T. // Current Science; 12/13/91, Vol. 77 Issue 8, p4Looks at the latest medical advances in the world of lasers. Terminology; How they work; Photons; Destruction of tumors; How they select the tissues they affect; Diabetic retinopathy; Impact of the color of light; Drawbacks; Creation of intense heat; Excimer laser or cold laser; Eye surgery; Use...
- World's tiniest laser.
McPhee, A.T. // Current Science; 1/8/93, Vol. 78 Issue 9, p15Discusses the world's tiniest laser. It looks like a tack and is so small at least 10,000 of them can fit on the head of a pin; Only 400 atoms thick; Transmits laser light at a rate of 28 billion pulses a second; More.
- Underwater laser communications.
McPhee, A.T. // Aviation Week & Space Technology; 5/14/84, Vol. 120 Issue 16, p21A study is underway for the use of blue-green lasers to provide underwater communications for submarines.
