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Quantum-Optical Transistor Controls Light

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GARCHING, Germany, May 24, 2010 — Physicists at the Max Planck Institute of Quantum Optics (MPQ) are claiming the ability to control the optical properties of a single atom using laser light. The group, led by professor Gerhard Rempe, director of MPQ and head of the Quantum Dynamics Div., based its work on the phenomenon of electromagnetically induced transparency, in which the transmission of laser light through an optically dense medium is controlled by a second laser beam. The researchers scaled down the effect to a single atom by taking advantage of the strong interaction between light and matter provided by an...Read full article

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    Published: May 2010
    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...
    atomic mediumBasic Sciencecavity axiselectromagnetically induced transparencyEuropeGerhard RempeGermanylaser lightMax Planck Institute of Quantum Opticsoptical cavityoptical propertiesOpticsphotonicsquantum networdsQuantum-Optical TransistorResearch & Technologysingle Rubidium atomweak laser fieldweak probe laserLasers

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