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NIST MEASURES THE DUV RESPONSIVITY OF GaN AND AlGaN PHOTODIODES FOR SOLAR-BLIND DETECTORS.(Brief Article)
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NIST researchers, in collaboration with colleagues from private industry, and the University of Minnesota, recently have measured the deep ultraviolet (DUV) responsivity of GaN and AlGaN photodiodes for use as solar-blind photodetectors. A solar-blind photo-detector has high sensitivity to ultraviolet radiation, but no appreciable response to visible radiation. These devices are important tools in many scientific and industrial applications in which one wants to measure ultraviolet ...
Related newspaper, magazine, and journal articles from HighBeam Research
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Effects of Visible Light on the Skin[dagger]
Photochemistry and Photobiology
; ABSTRACT Electromagnetic radiation has vast and diverse effects on human skin. Although photobiologic studies of sunlight date back to Sir Isaac Newton in 1671, most available studies focus on the UV radiation part of the spectrum. The effects of visible light and infrared radiation have not been,
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Digital plates: more choices, more niches; thermal and visible light products continue to streamline the CTP market by eliminating such steps as preheating, postbaking, and processing.
Graphic Arts Monthly
; ... marketing director in charge of plates for Kodak Polychrome Graphics (KPG) the world's leading thermal plate supplier. The biggest news in thermal involves processless plates (Agfa and Presstek have offerings, while Fujifilm and KPG have the technology in development ...
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PACS and nonradiologic images: a current solution: including visible light images in the PACS--why bother?(IMAGING INFORMATICS)(picture archiving and communication systems)
Imaging Economics
; Radiologists were the first physicians to embrace picture archiving systems because radiology workflow is based on image management and interpretation. However, other areas of medicine are increasingly relying on image data to supplement traditional patient information. Examples can be found in
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X-ray Data Reveal Black Holes Galore.(in galaxies)(Brief Article)
Science News
; Viewed in visible light, the sky appears as a dark expanse, adorned with the twinkling lights of faraway stars. But with an X-ray telescope, the sky seems uniformly bright, bathed in a diffuse glow. For 37 years, astronomers have struggled to find the multitude of pointlike sources that combine to
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Thermal or Visible Light? THE DEBATE CONTINUES.
Graphic Arts Monthly
; Choosing a plate technology can be a daunting, confusing task for printers looking to enter the world of CTP. Over the last four-and-a-half years, since the launch by Eastman Kodak of its Thermal Printing Plate/830 (now distributed by Kodak Polychrome Graphics) at the Drupa '95 printing exposition,
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Hazy, Hot, and Hidden
Natural History
; Dust-laden clouds at the centers of some galaxies may enshroud titanic starbursts or baby quasars. Galaxies illuminate the universe, and not just with visible light. Think, for a moment, about an incandescent light bulb-it's not only bright, it's hot, too; and the heat we feel comes mostly from
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Shedding some light on adhesive curing: adhesives are a key component in the assembly of a variety of medical devices. Unfortunately, specific curing requirements of certain types have caused difficulties for manufacturers using traditional adhesive options. Visible light curing adhesives, however, enable the use of equipment that costs less, offers a safer solution, and enables greater flexibility in the design of the product.(Cover story)
Medical Design Technology
; Adhesives are playing an increasingly prominent role in the design and assembly of highly effective medical devices used for diagnostic, treatment, and prevention purposes. Adhesives make it possible to deliver smaller, less invasive, more intricate devices that meet higher performance standards.
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Visible Light.(Brief Article)(Product Announcement)
DVD Intelligence
; Visible Light is shipping its new Macarena line of DVD authoring systems, which are based on the new Power Mac G4 series by Apple Computer. It integrates the DVDirector authoring software by Astarte, and includes a hardware DVD playback device, SCSI interface, software MPEG1/MPEG2 encoder, 2/5.1
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Photocatalyst five times more active in the visible light range. (Composites).(by Toshiba Ceramics Company Ltd.)(Company Profile)
New Materials Japan
; Toshiba Ceramics has developed a photocatalyst titanium dioxide product that is five times more active than conventional photocatalysts in the visible light range of 400 to 550 nm. Photocatalyst titanium dioxide, which is widely used today, becomes active by absorbing ultraviolet light with
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Light Shines Brightly from Tiny Antenna
Electromagnetic News Report
; Visible light has a wavelength of 400 to 700 nanometers while nanotech structures are measured in tens of nanometers. Comparing visible light with nanotechnology is similar to comparing a sledgehammer with a Swiss watch. Researchers, by creating a nanoscale optical antenna working much like a radio
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