Second harmonic generation by a chirped laser pulse in magnetized-plasma

被引：24

作者：

Kant, Niti ^{[1
]}

Thakur, Vishal ^{[1
]}

机构：

[1] Lovely Profess Univ, Dept Phys, GT Rd, Phagwara 144411, Punjab, India

来源：

OPTIK | 2016年 / 127卷 / 08期

关键词：

Second harmonic generation; Magnetized plasma; Chirped pulse laser; RELATIVISTIC HARMONIC-GENERATION; PROPAGATION; BEAM; ACCELERATION; DRIVEN; WAVES;

D O I：

10.1016/j.ijleo.2015.12.165

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Second harmonic generation of a relativistic self-focusing chirped laser pulse in magnetized-plasma has been investigated. When a highly intense laser beam propagates through homogeneous plasma under the influence of transverse magnetic field, it is found that transverse current density starts oscillating with a frequency twice of the laser field. Further as we increase the value of the positive chirp parameter, efficiency of the second harmonic generation increases significantly. Cyclotron frequency associated with plasma electrons plays a crucial role in the enhancement of the second harmonic generation. The dynamics of oscillating electrons is changed due to Lorentz force which modifies the plasma wave which affects the second harmonic significantly. (C) 2016 Elsevier GmbH. All rights reserved.

引用

页码：4167 / 4172

页数：6

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