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http://hdl.handle.net/11154/1971
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Title: | The Vavilov-Cherenkov effect produced by an electromagnetic pulse |
Authors: | Jimenez, JL Roa-Neri, JAE Villavicencio, M |
Issue Date: | 2001 |
Abstract: | In this paper the Vavilov-Cherenkov radiation produced by an electromagnetic pulse propagating, unchanged in shape, inside a medium is analysed. The electromagnetic pulse induces a polarization charge which moves inside the medium with the group velocity. This polarization charge induces time-dependent elemental dipoles in the material medium. If the group velocity is greater than the phase velocity of light in such a medium there is a coherent superposition of the radiation emitted by each elemental dipole that gives rise to Vavilov-Cherenkov radiation. Two methods to obtain the energy spectrum are developed. |
URI: | http://hdl.handle.net/11154/1971 |
ISSN: | 1464-4258 |
Appears in Collections: | Física
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