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Light Pipes Detect Vapors

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PROVO, Utah, JULY 16, 2007 -- A portable laboratory the size of a microchip uses light to detect gases. Brigham Young University (BYU) and University of California-Santa Cruz (UC-Santa Cruz) researchers have achieved the advance by focusing light through special tubes tiny enough for use on the scarce silicon real estate. Light normally disperses in all directions from its source. But these "light pipes" are designed to focus intense beams of light on a small number of atoms inside.This tiny chip uses light to detect gases. The faint lines are "light pipes," which focus beams on the gas atoms inside. (Photo...Read full article

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    Published: July 2007
    Glossary
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    Basic ScienceBiophotonicsBrigham Young UniversityBYUCommunicationsdefensefiber opticsindustriallight detects gasesmicrochipnanoNews & Featuresphotonicsportable laboratorSensors & DetectorsUC-Santa CruzUniversity of California-Santa Cruz

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