Optimization and control of electron beams from laser wakefield accelerations using asymmetric laser pulses

被引:18
作者
Gopal, K. [1 ]
Gupta, D. N. [1 ]
机构
[1] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India
关键词
Quality control - Electron beams - Plasma simulation - Electrons;
D O I
10.1063/1.5001849
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
Optimization and control of electron beam quality in laser wakefield acceleration are explored by using a temporally asymmetric laser pulse of the sharp rising front portion. The temporally asymmetric laser pulse imparts stronger ponderomotive force on the ambient plasma electrons. The stronger ponderomotive force associated with the asymmetric pulse significantly affects the injection of electrons into the wakefield and consequently the quality of the injected bunch in terms of injected charge, mean energy, and emittance. Based on particle-in-cell simulations, we report to generate a monoenergetic electron beam with reduced emittance and enhanced charge in laser wakefield acceleration using an asymmetric pulse of duration 30 fs. Published by AIP Publishing.
引用
收藏
页数:7
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