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Spectroscopy News
Astronomers Release First Images From Hubble's Revived 'NICMOS'
Jun 12, 2002 — TUCSON, Arizona, June 12 -- The Hubble Space Telelscope has its infrared vision back. The space telescope has been blind at infrared wavelengths since 1999 when NICMOS, or the near-infrared camera and multi-object spectrometer, ran out of cryogen. Then last March, astronauts installed a closed-cycle cryocooler that will keep the key instrument operating indefinitely. The revived Near Infrared Camera and Multi-Object Spectrometer (NICMOS) aboard NASA's Hubble Space Telescope has penetrated...
Metal Migration Leads to Breakdown of Organic LEDs
Jun 1, 2002 — Using secondary ion mass spectrometry, researchers at the Institute of Materials Research and Engineering in Singapore have found that some organic LEDs degrade because of metal migration at the indium-tin oxide/polymer interface. As reported in...
Photonics Probes Hydrogen Exchange
Jun 1, 2002 — Theorists at Durham University in the UK and experimentalists at Stanford University in California have joined forces to investigate the dynamics of the simplest and most studied of bimolecular reactions, the hydrogen-exchange reaction. In this...
Cymer, LTB Lasertechnik Berlin Developing DUV Spectrometer
May 22, 2002 — SAN DIEGO, May 22 -- Cymer Inc. and LTB Lasertechnik Berlin GmbH have agreed to jointly develop an advanced spectrometer for measuring the spectral performance of deep-ultraviolet (DUV) light sources. Under the terms of the agreement, LTB will...
Daily News Briefs
May 16, 2002 — AvroTec Inc., designer and manufacturer of cockpit displays for small general-aviation aircraft, has joined Microvision's Nomad Personal Display System reseller program. . . . Germany semiconductor equipment manufacturer AIXTRON said Kopin...
BAE SYSTEMS IR Sounder to Improve Weather Forecasts
May 10, 2002 — NASHUA, N.H., May 10 -- BAE SYSTEMS' Atmospheric Infrared Sounder (AIRS), built by the IR Imaging Systems (IRIS) business area in Lexington, Mass., was launched May 4 on board NASA's Aqua spacecraft from Vandenberg Air Force Base, Calif. AIRS is a...
Indigo-DUV Wins Circle of Excellence Award
May 3, 2002 — LOS GATOS, Calif., Feb. 5 -- Positive Light's Indigo-DUV laser was awarded the 2002 Photonics Spectra Circle of Excellence Award at Photonics West 2003 last week. The company said the product is the first all-solid-state, narrow linewidth 193 nm...
Coastal Imager Provides Linear Results
May 1, 2002 — Tests performed by the Naval Research Laboratory in Washington have found that the Ocean Portable Hyperspectral Imager for Low-Light Spectroscopy produces highly linear spectral and radiometric responses while imaging coastal environments. The...
Lasers Induce Transformation of Benzene
May 1, 2002 — Multiple 70-mW continuous-wave laser sources have been used by researchers from the Università di Firenze and the European Laboratory for Nonlinear Spectroscopy and INFM, both in Florence, Italy, to induce the chemical transformation of crystalline...
Microscopy Techniques Image Organic LED Bubble Formation
May 1, 2002 — Scientists from the Institute of Materials Research and Engineering in Singapore have examined the formation of dark spots in organic LEDs caused by dome-shaped bubbles at the interface between an emissive and nonemissive diode layer. Using the...
OptiSense Buys GasCam Instrument, Rights
Apr 17, 2002 — WEST SUSSEX, England, April 17 -- OptiSense Ltd. has purchased the hardware and intellectual property rights to a portable FTIR spectrometer designed to be used as an industrial gas detection system. The GasCam instrument was developed by OptiGas...
Astronomers Anticipate Clues to Galactic Mystery
Apr 11, 2002 — ITHACA, N.Y., April 11 -- With the recent delivery of the telescope and scientific instruments for the Space Infrared Telescope Facility (SIRTF) -- the last of NASA's four great observatories -- to Lockheed Martin Space Systems in Sunnyvale, Calif.,...
Optical Setup Explores Microbes and Minerals
Apr 1, 2002 — Despite concerted efforts by the Department of Energy to clean up radioactive waste at bioremediation sites in Hanford, Wash., and Oak Ridge, Tenn., progress is going very slowly. Jill Scott, a chemist and lead researcher for the Environmental...
Pulse Shaping Increases CARS Resolution
Apr 1, 2002 — Coherent anti-Stokes Raman spectroscopy (CARS) is becoming the technique of choice for femtosecond time-resolved studies, say researchers at Weizmann Institute of Science in Rehovot, Israel, but its selectivity suffers because of the large bandwidth...
Welding System Monitors Gas Shield
Apr 1, 2002 — Although laser welding is widely used in manufacturing, it has not yet found a home in the aerospace industry. The technique would be an attractive tool in this sector if its reliability could be improved, but aerospace alloys present problems that...
Choosing a Scientific CCD Detector for Spectroscopy
Mar 1, 2002 — Since the invention of the charge-coupled device by Willard Boyle and George Smith at Bell Labs in 1970, there has been an explosion in its use in scientific, medical and industrial imaging, and in spectroscopy applications.CCDs represented a...
Infrared Spectrometer Filter Is Electrically Tunable
Mar 1, 2002 — Portable infrared spectrometers enable in situ analysis of compounds in a variety of hazardous environments on Earth and in space. Such possibilities have led researchers at Ryukoku University in Otsu, Japan, to develop a small, robust infrared...
Plasma Spectroscopy Monitors Welds
Mar 1, 2002 — Researchers from Università degli Studie Politecnico di Bari and from Istituto Nazionale per la Fisica della Materia, both in Bari, Italy, have developed a nonintrusive sensor system to monitor laser welding in real time. By spectroscopically...
Specifying Injection-Molded Plastic Optics
Mar 1, 2002 — The use of plastic optics continues to grow in popularity as optical design engineers discover the many ways these components can manage light. Plastic optical elements and systems appear in a wide spectrum of industrial and medical applications,...
Spectroscopy Probes Attosecond World
Mar 1, 2002 — Researchers have probed the microworld with femtosecond spectroscopy, enabling them to investigate nuclear motion at its 10- to 20-fs timescale. Now a team from Technische Universität Wien in Vienna, Austria, Steacie Institute of Molecular Sciences...
Infiltrated Crystal Offers Tunable Bandgap
Feb 1, 2002 — Researchers in Katsumi Yoshino's group at Osaka University in Suita, Japan, have demonstrated photonic bandgap tunability in synthetic opal infiltrated with liquid crystal. They also have produced a tunable inverse opal, promising applications in...
Laser Enhances Spectroscopy Technique's Sensitivity
Feb 1, 2002 — A forensic chemist in the trace evidence department at the South Carolina Law Enforcement Div., Lt. Joe Powell catches criminals with a 213-nm Nd:YAG laser attached to an inductively coupled mass spectrometer. This detection technique can identify...
Modeling Optimizes MOEMS Production
Feb 1, 2002 — Miniaturized optoelectronic systems are an attractive choice for applications from telecommunications to inertial sensing. The setup costs for manufacturing micro-optoelectromechanical systems (MOEMS) are high, however, and economies of scale...
Researchers Spectrally Model Butterfly Wings
Feb 1, 2002 — In the past, researchers have tried to model butterfly wings as simple, planar thin-film structures to gain insight about their radiative effects, but they have produced results that fail to explain the blue iridescence of the Morpho menelaus. The...
Spectrometer Enables Better Plasma Displays
Feb 1, 2002 — Until now, the study of suitable phosphors for plasma display panels has been trial and error because no device has been sensitive enough to investigate their properties. But researchers at Kyushu University in Fukuoka, Japan, have developed an...
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May 2024
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