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ultraviolet light News
Lighting Up Life on Mars
CORVALLIS, Ore., June 23, 2008 -- A method to identify organic matter in soils with ultraviolet (UV) light could be used to document the existence of life on Mars. A team of scientists from the US and the UK have reported a technique that could operate on any Mars lander or...
A Simpler Fabrication Technique for LEDs
Mar 1, 2008 — The final step in fabricating an LED involves packaging the bare LED chip in an epoxy encapsulation. The epoxy not only protects the chip physically but also serves as a lens to focus the light emitted by the chip. Typically, this encapsulation step...
Strange Star Trail Spotted
WASHINGTON, Aug. 16, 2007 -- NASA's Galaxy Evolution Explorer has spotted an amazingly long comet-like tail behind a star streaking through space at supersonic speeds. The star, named Mira after the Latin word for "wonderful," has been a favorite of astronomers for about 400...
Toad Trapper
Nov 1, 2005 — Ultraviolet lights — similar to the “black” lights used in discotheques — may prove a fatal attraction for cane toads (Bufo marinus). The pesky amphibians were introduced into Australia in 1935 to help eradicate beetles that infest sugar cane...
UV Alert, Gotta Fly
Sep 1, 2005 — Without ultraviolet light, a monarch butterfly will get disoriented. This was a major finding in a study of how the insects navigate during their 3000-mile migration. Because each creature’s trek is a once-in-a-lifetime trip, there are no guides who...
New Light Wave Measurements Most Precise Ever
Mar 12, 2004 — GAITHERSBURG, Md., March 12 -- New measurements of key wavelengths of ultraviolet light -- down to a few millionths of a nanometer -- are among the most precise ever reported and are improving calibrations of microlithography tools used in making...
Coherent Acquires Lambda Physik AG
Aug 15, 2003 — SANTA CLARA, Calif., August 15 -- Coherent Inc. announced it has completed its tender offer for the outstanding shares of its Lambda Physik AG subsidiary, based in Gottingen, Germany. The offer was made through Coherent’s German holding company,...
Light-Reactive Coating Cleans Surfaces
Dec 1, 2001 — If you shine ultraviolet light on a surface coated with titanium dioxide, a common white pigment in paint, it self-sterilizes and defogs. Until now, however, if you used visible light, only approximately 5 percent of which is in the UV region, it...
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