Spectra from stimulated Raman scattering of short relativistically strong laser pulses in an underdense plasma

被引：3
|
作者：
Sakharov, AS [1 ]
机构：
[1] Russian Acad Sci, Inst Gen Phys, Moscow 117942, Russia
来源：
PLASMA PHYSICS REPORTS | 2000年 / 26卷 / 08期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/1.1306995
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
A set of equations describing large-angle stimulated Raman scattering (SRS) of a short, relativistically strong laser pulse propagating in an underdense plasma is derived and investigated numerically. It is shown that the SRS spectrum depends strongly on the pulse shape. If a pulse with a sharp leading edge excites a strongly nonlinear wake wave, the scattering occurs in relativistic electron flows and is accompanied by the Doppler frequency shift. When the electron flow is directed oppositely to the pulse propagation direction, the frequency upshift is maximum for the direct-backward SRS and decreases with decreasing scattering angle. (C) 2000 MAIK "Nauka/Interperiodica".
引用
收藏
页码：657 / 667
页数：11
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