Compton散射下激光等离子体纵波色散特性

应用电子与多光子集团非线性Compton散射模型,研究了Compton散射下激光等离子体纵波色散特性.结果表明:长波支纵色散曲线由解析上的长波、数值计算结果和短波组成,长波支和短波支纵色散均随相对论正负电子对特征温度的增大而增大,随Compton散射引起的频率的增量的增大而降低,且单温激光等离子体的色散曲线与散射前的双温等离子体的色散曲线相似.

Longitudinal Wave Dispersion Characteristic of Laser-plasma Under Compton Scattering

Using the model of multi-photon nonlinear Compton scattering between an electron and a photon-groups,the longitudinal wave dispersion characteristic of the laser-plasma under Compton scattering is studied.The results show that the dispersion curvatures of the long longitudinal wave are formed by the analytic long wave,numerical computing result and short wave.The dispersions of longitudinal wave of the long and short waves are increased with the increase of the characteristic temperatures of the positive and negative relativity electrons,and these dispersions are reduced along with the increase of the frequency increasing number taken place by Compton scattering.The dispersion curvature of the one temperature laser-plasma and the dispersion curvature of the two temperature laser-plasma are similar.