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Cerenkov Radiation Modeled in Photonic Crystals

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Researchers at Massachusetts Institute of Technology in Cambridge have simulated the emission of Cerenkov radiation by a moving charged particle in a two-dimensional photonic crystal. Based on their findings, which appear in the Jan. 17 issue of Science, they propose that the phenomenon may lead to more sensitive particle detectors and to the development of unique sources of radiation. According to their models, the relationship of the charge velocity to the speed of light in a periodic structure produces four distinct types of Cerenkov radiation, including a backward-pointed, reversed...Read full article

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    Published: March 2003
    Glossary
    cerenkov radiation
    The radiation produced when a charged particle traverses a medium that has a refractive index considerably greater than unity. The moving particle has a velocity that exceeds the velocity of light in the medium, thus producing the radiation.
    Cerenkov radiationcharged particle in a two-dimensional photonic crystalMassachusetts Institute of TechnologyResearch & TechnologySensors & Detectors

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