Generation of THz Radiation by Laser Plasma Interaction

被引：40
|
作者：
Singh, M. [1 ]
Sharma, R. P. [1 ]
机构：
[1] Indian Inst Technol, Ctr Energy Studies, New Delhi 110016, India
来源：
CONTRIBUTIONS TO PLASMA PHYSICS | 2013年 / 53卷 / 07期
关键词：
Laser-Plasma interaction; THZ radiation; MAGNETIZED PLASMA; PULSE; EMISSION; FIELD;
D O I：
10.1002/ctpp.201300006
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：
This paper presents the three wave parametric decay process to generate the Terahertz (THz) radiations in magnetized plasma. The pump wave (Laser beam) is considered in the extraordinary mode (x-mode), propagating perpendicular to the background magnetic field. This pump wave decays into an upper hybrid wave and a THz wave which is in magnetosonic mode. The appropriate expressions for the coupling coefficients of the threewave interaction and THz wave amplitude have been derived. Subsequently, the growth rate of this decay instability is also calculated. Various laser and plasma parameters were optimized and we report efficiency of the order of approximate to 1.4 x 10(-2) for current scheme. ((c) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
引用
收藏
页码：540 / 548
页数：9
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