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Light induced by charged particles in optical fibers

Abstract : The field of a charged particle passing through or near an optical fiber polarizes the fiber atoms transiently. This produces a particle-induced guided light (PIGL). PIGL can also be assisted by a metallic object stuck to the fiber, via plasmon excitation. Type-I PIGL is produced in a translation-invariant part of the fiber, type-II PIGL is produced at a fiber end, an indentation or a metallic object. Properties of type-I PIGL in a single-mode fiber (spectrum, polarization) are reviewed. Order of magnitudes are given for type-II PIGL from a fiber end or a metallic ball. Interference effects are outlined, in particular the guided Smith-Purcell radiation. Applications of PIGL to beam diagnostics are discussed.
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http://hal.in2p3.fr/in2p3-00861228
Contributor : Dominique Girod <>
Submitted on : Thursday, September 12, 2013 - 11:55:51 AM
Last modification on : Tuesday, November 19, 2019 - 2:44:29 AM

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X. Artru, C. Ray. Light induced by charged particles in optical fibers. The 5th International Conference "Channeling 2012", "Charged & Neutral Particles Channeling Phenomena", Sep 2012, Alghero, Italy. pp.162-166, ⟨10.1016/j.nimb.2013.01.061⟩. ⟨in2p3-00861228⟩

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