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Basic Science News
Princeton Promises Much on Organic Lasers
Dec 1, 1997 — PRINCETON, N.J. -- It may not carry the fury of the big bang or death gene debates, but to those in the diode laser business organic lasers have sparked more than polite dinner conversation. Princeton University researchers say they have the evidence to prove that organic lasers are more than superluminescent light bulbs. Touted as a tunable laser medium, organic lasers offer low costs (compared with semiconductors), small packages and flexible designs for various applications. The Princeton...
IR Beamsplitter Coatings Reduce Gas Analyzer Size, Cost
Nov 1, 1997 — A manufacturer of gas-analysis equipment had developed a product that could quickly and accurately measure up to 250 hydrocarbon gases, but it was not without its problems. It was a large, expensive instrument. The company determined that a...
Legislation Would Preserve Funding for Lawrence Livermore Laser Projects
Nov 1, 1997 — Members of the US Senate and House of Representatives are ironing out legislation that, if passed, would infuse additional funds into Lawrence Livermore National Laboratory to continue laser research. Under a provision in the bill, an additional $60...
News FlashReally 'Cool' Lasers Bag Nobel Prize for Chu
Nov 1, 1997 — More than 12 years after his first experiments to trap atoms optically, physicist Steven Chu has won a Nobel Prize for his use of lasers to cool atoms to nearly absolute zero. Chu, a professor of physics at California's Stanford University, showed...
Polarized Light Makes Special Glass Grow
Nov 1, 1997 — CAMBRIDGE, UK -- Science has pursued organic polymers in the quest for light-powered, nano-size switches, motors and pumps. Now, researchers at the University of Cambridge have developed an inorganic glass that expands and contracts in response to...
Lasers Improve Uranium Enrichment
Oct 1, 1997 — LIVERMORE, Calif. -- Nuclear energy provides about 20 percent of the electricity used in the US, but separating uranium isotopes for power generation has been a power-hungry task itself -- until lasers offered a new method. To fuel nuclear reactors,...
Scientists Construct Model to Illustrate Behavior of Optically Excited Materials
Oct 1, 1997 — A group of researchers based at the University of Rochester and led by Shaul Mukamel has developed a set of theoretical models that illustrate how properties of both small and large molecules change when optically excited. Up until this point,...
Sensor reveals steak freshness
Oct 1, 1997 — SWANSEA, UK -- Scientists have developed an inexpensive thin-film oxygen sensor with emission bands in the visible region that fluoresces under a simple UV light source. The sensor could have widespread applications in detecting oxygen contamination...
Spectrometer Makes Astronomical Debut
Oct 1, 1997 — Amateur and university astronomers have more in common than a passing interest in stars. With the tight equipment budgets at universities today, professional astronomers often find themselves confronted with a problem that most amateur astronomers...
Atomic Force Microscope Hindered in Liquid
Sep 1, 1997 — Since its invention, the atomic force microscope has permitted high-resolution imaging at the subnanometer level. Recently, when scientists introduced the microscope to a liquid environment, the resolution improved to the atomic level. Aside from...
Jellyfish Genes Eyed for Optical Storage
Sep 1, 1997 — SAN DIEGO -- For the next generation of optical storage technology, scientists at the University of California are looking to the sea. A report published in Nature describes newly discovered properties of the green fluorescent protein that gives...
Photorefractive Polymer Provides High Optical Gain and Long Lifetime
Sep 1, 1997 — SAN DIEGO -- Scientists have unveiled a durable, optically efficient polymer that improves on several years of research toward an inexpensive photorefractive material. Moreover, they have demonstrated its use as an efficient phase conjugated mirror,...
Telescope Looks for Dirty Skies
Sep 1, 1997 — A 30-in. Beck telescope returned to Agnes Scott College in Decatur, Ga., after a 10-year hiatus. The instrument was originally installed at the college's observatory, but after pollution ended its star-gazing days, it was moved to a Georgia State...
Volcano Research Keeps Its Distance
Sep 1, 1997 — MEXICO CITY -- A Pan-American research team has been using photonics to watch a nearby volcano in hopes of learning how to forecast eruptions, assess health risks for people who live near volcanoes and determine volcanoes' effects on air pollution....
Fiber Aids Atom Deposition
Aug 1, 1997 — A group of Japanese and Korean researchers have discovered an atom deposition technique that overcomes the diffraction limit in optical lithography. The researchers sent atoms down a micron-size, hollow optical fiber, with a blue detuned evanescent...
Just One Second!
Jul 1, 1997 — To keep the world's atomic clocks synchronized with the Earth's rotation, the National Institute of Standards and Technology's Time and Frequency Div. added a "leap" second June 30. This is the 21st adjustment to the world's time scale since 1972...
X-Ray Tool Aids Laser Design
Jul 1, 1997 — MURRAY HILL, N.J. -- Scientists at Bell Laboratories have developed a tool that uses x-ray technology to measure strain in small volumes of material for laser manufacturing and quality control applications.According to the company, the x-ray...
European Photonics Experts Focus on Munich
Jun 1, 1997 — More than 14,000 photonics scientists, engineers and technicians worldwide will converge on the Munich Trade Fair Site for the 13th LASER conference and exposition June 16 to 20. This year's event, touted as the leading international trade fair for...
New Cantilever Boosts SFM Resolution
Jun 1, 1997 — STANFORD, Calif. -- Stanford University researchers have combined an interferometric diffraction grating with light-reflecting scanning force microscope cantilevers in a way that could result in a tenfold increase in the resolution of commercially...
Conference Highlights Medical, Entertainment Laser Safety
May 1, 1997 — ORLANDO, Fla. -- A better understanding of the hazards of the surgical laser plume, real-time videos of retinal laser lesions in live animal's eyes and an in-depth examination of endotracheal laser accidents were among the highlights of the Third...
Laser Technique Reveals Metal Contamination in Soil
May 1, 1997 — Commercial ships require routine repainting, and when the old paint is sandblasted from the anchors and hulls, lead and other metals contaminate the soil. Environmental assessment of these sites typically involves collecting soil samples at various...
Laser-Chilled Atoms Sit for Ultrafast Portrait
May 1, 1997 — Physicists from the University of Michigan recently fired 70-fs pulses from a Ti:sapphire laser to control the random movements of atoms in a potassium-tantalite crystal. The laser was split in two beams, with one arriving at the crystal target a...
United States and Japan Collaborate to Form New Physics Center
May 1, 1997 — The Japanese Institute of Physical and Chemical Research has established a physics research center at the US Department of Energy's Brookhaven National Laboratory in Upton, N.Y. The center will nurture international cooperation in the physics...
Intensified CCDs Detect Single-Photon Emission
Apr 1, 1997 — TRENTON, N.J. -- The new generation of high-resolution, back-illuminated intensified charge-coupled device (CCD) cameras will allow scientists to directly study the processes that regulate individual molecules, expanding the bodies of knowledge in...
Israeli Conference Marks Industry's Anniversary
Apr 1, 1997 — JERUSALEM -- A glimpse into the future by the laser's discoverer and a retrospective on the development of holography highlighted the 10th Meeting on Optical Engineering held last month at Jerusalem's International Convention Center. Keynote...
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