Influence of Gaussian, Super-Gaussian, and Cosine-Gaussian Pulse Properties on the Electron Acceleration in a Homogeneous Plasma

被引:21
作者
Fallah, Reza [1 ]
Khorashadizadeh, Seyyed Mohammad [1 ]
机构
[1] Univ Birjand, Dept Phys, Birjand 5632146243, Iran
关键词
Electron acceleration; laser-plasma interaction; laser pulses; wakefield excitation; LASER-PULSE; WAKE-FIELD; BEAM;
D O I
10.1109/TPS.2018.2834512
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
In this paper, the process of electron acceleration in a homogeneous plasma is determined for the Gaussian pulse (GP), super-GP, and cosine-GP (CGP). In addition to the wake-field (E-w) behind the laser pulses, the expressions for the electron energy gain and density perturbation are obtained and compared with each other for all these types of laser pulses by making the pulse duration the same as the electron plasma period. The analytical results show that the amplitude of wakefield depends on the laser intensity, pulse wavelength, pulselength, and plasma electron density. By comparing the results, the CGP is found to be most significant as in this case the electron can be accelerated up to 800 MeV when I = 3 x 10(22)(W/m(2)), lambda = 820 nm, and n = 3.4 x 10(24) m(-3).
引用
收藏
页码:2085 / 2090
页数:6
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