Stimulated Raman backscattering of laser radiation in deep plasma channels

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dc.creatorKalmykov, Serguei
dc.creatorShvets, Gennady
dc.date2004-05-21
dc.date.accessioned2026-07-07T05:51:55Z
dc.date.available2026-07-07T05:51:55Z
dc.descriptionStimulated Raman backscattering (RBS) of intense laser radiation confined by a single-mode plasma channel with a radial variation of plasma frequency greater than a homogeneous-plasma RBS bandwidth is characterized by a strong transverse localization of resonantly-driven electron plasma waves (EPW). The EPW localization reduces the peak growth rate of RBS and increases the amplification bandwidth. The continuum of non-bound modes of backscattered radiation shrinks the transverse field profile in a channel and increases the RBS growth rate. Solution of the initial-value problem shows that an electromagnetic pulse amplified by the RBS in the single-mode deep plasma channel has a group velocity higher than in the case of homogeneous-plasma Raman amplification. Implications to the design of an RBS pulse compressor in a plasma channel are discussed.
dc.description11 pages, 3 figures; submitted to Physics of Plasmas
dc.identifierhttps://arxiv.org/abs/physics/0405114
dc.identifierhttp://arxiv.org/abs/physics/0405114
dc.identifierPhysics of Plasmas, Vol. 11, No. 10, pp. 4686-4694 (2004)
dc.identifierdoi:10.1063/1.1778743
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/86158
dc.subjectPlasma Physics
dc.subjectOptics
dc.titleStimulated Raman backscattering of laser radiation in deep plasma channels
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