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Lasers Reveal How Atoms Collide

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BOULDER, Nov. 2 -- Using laser pulses that last just 70 femtoseconds (quadrillionths of a second), physicists have observed in greater detail than ever before what happens when atoms collide. The experiments at JILA, a joint institute of the National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder, confirm a decades-old theory of how atoms -- like tennis balls -- briefly lose form and energy when they hit something. The results will help scientists study other atomic-scale processes and better understand the laws of physics. JILA scientists used brief...Read full article

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    Published: November 2005
    Glossary
    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...
    atoms collideBasic SciencefemtosecondsJILAlaser pulsesNational Institute of Standards and TechnologyNews & FeaturesNISTphotonicsSensors & DetectorsUniversity of Colorado

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