Suppression of stimulated Raman side-scattering of a laser in a plasma in presence of co-propagating electron beam

被引：4

作者：

Baliyan, Sweta ^{[1
]}

Rafat, M. ^{[1
]}

Panwar, Anuraj ^{[2
]}

Sharma, Navneet K. ^{[2
]}

Sajal, Vivek ^{[2
]}

机构：

[1] Jamia Millia Islamia, Dept Appl Sci & Humanities, New Delhi, India

[2] Jaypee Inst Informat Technol, Dept Phys & Mat Sci & Engn, Noida, UP, India

来源：

OPTIK | 2019年 / 179卷

关键词：

Ponderomotive force; Stimulated Raman side-scattering; 2ND-HARMONIC GENERATION; ACCELERATION; WAVE;

D O I：

10.1016/j.ijleo.2018.10.160

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The growth of stimulated Raman side-scattering of a laser beam propagating in the plasma may be influenced by the presence of co-propagating electron beam. The laser beam excites a pair of plasma wave and side-scattered electromagnetic wave. The side-scattered wave and pump wave couple together and exert a ponderomotive force on beam and plasma electrons which intern enhances the amplitude of plasma wave. The density perturbation in the plasma due to plasma wave couple nonlinearly with pump wave and excite a nonlinear current responsible for the growth of side-scattered electromagnetic wave. The phase matching between plasma wave and electron beam controls the growth of Raman process. Raman process saturates when bounce frequency of beam electrons exceeds the growth rate.

引用

页码：330 / 335

页数：6

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