Harmonie generation of ultraintense laser pulses in underdense plasma

被引:40
|
作者
Lin, Hai [1 ,2 ]
Chen, Li-Ming [1 ,3 ]
Kieffer, J.C. [1 ]
机构
[1] INRS-Energy and Material, 1650 Boulevard Lionel-Boulet, Varennes, J3X 1S2, Canada
[2] Graduate School, CAEP, P.O. Box 2101, 100088 Beijing, China
[3] SW Inst. of Nucl. Phys. and Chem., P.O. Box 202919, Mianyang 621900, China
关键词
Correlation methods - Electric potential - Functions - Harmonic generation - Laser beams - Light polarization - Mathematical models - Plasmas - Vectors - Waveform analysis;
D O I
10.1103/PhysRevE.65.036414
中图分类号
学科分类号
摘要
We propose a nonlinear theory of the generation of harmonic radiation from the interaction of ultraintense laser beams with plasma. The harmonic generation is related to the transition of the laser-plasma equilibrium state. By taking into account correlations among sidebands, we study many sidebands comprehensively. The harmonic generation is viewed as a redistribution of laser field over different frequencies because of the requirement of system stability. We introduce a system parameter S that is related to the sideband intensity spectrum and self-consistently calculate the value of S. Our numerical experiments reveal that the variations of controllable system parameters, plasma density, and laser peak intensity have a great effect on S. © 2002 The American Physical Society.
引用
收藏
页码:1 / 036414
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