Stimulated Raman Scattering of Ponderomotively Self Focused Cosh Gaussian Laser Beams in Axially Inhomogeneous Plasmas

被引：0
作者：
Gupta, Naveen [1 ]
机构：
[1] Lovely Profess Univ, Phagwara, India
来源：
NONLINEAR OPTICS QUANTUM OPTICS-CONCEPTS IN MODERN OPTICS | 2024年 / 59卷 / 3-4期
关键词：
Self-focusing; stimulated raman scattering; cosh-gaussian; density ramp; PROPAGATION; LIGHT;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Stimulated Raman scattering (S.R.S) of intense cosh-Gaussian (ChG) laser beams interacting with axially inhomogeneous plasmas has been investigated by incorporating the effect of self-focusing of the laser beam. An intense laser beam with frequency omega(0) propagating through plasma gets coupled with a preexisting electron plasma wave (EPW) at frequency omega(ep) and produces a back scattered wave at frequency omega(s) = omega(0) - omega(ep) . Semi analytical solution of the set of coupled wave equations for the pump, EPW and scattered wave has been obtained by using variational theory under W.K.B approximation. It has been observed that SRS reflectivity of plasma is significantly affected by the self- focusing effect of pump beam.
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页码：169 / 207
页数：39
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