Compton散射对等离子体中激光衰减特性的影响  

Influences on attenuation characteristics of laser in plasma by Compton scattering

作　　者：孙甫照[1] 郝晓飞[2] 郝东山[2] 

机构地区：[1]黄淮学院电子科学与工程系,驻马店463000 [2]黄淮学院信息工程学院,驻马店461000

出　　处：《核聚变与等离子体物理》2012年第2期148-152,共5页Nuclear Fusion and Plasma Physics

基　　金：河南省基础与前沿技术研究资助项目(092300410227)

摘　　要：应用多光子非线性Compton散射模型,研究了Compton散射对等离子体中激光衰减特性的影响。提出了Compton散射是影响激光衰减的一个重要机制,给出了激光能量和功率衰减值的表达式,并进行了数值模拟。结果表明,Compton散射对等离子体中传输的激光能量和功率衰减值有较大影响,理论计算和数值模拟符合得很好。这也为判断等离子体中发生Compton散射提供了依据。Using the model of multi-photon nonlinear Compton scattering, the influences on attenuation characteristics of electromagnetism wave in plasma by Compton scattering is studied. It is advanced that Compton scattering is an important influence mechanism on the attenuation characteristics of electromagnetism wave in plasma, and the formulas on attenuations of the electromagnetism wave energy and power are derived and simulated numerically. The results show that Compton scattering can take bigger influences on the attenuation of electromagnetism wave in plasma, and the results between the theory computation and numerical simulation are very coincident. The results can give the theory basis for deciding the Compton scattering taking place in the plasma.

关 键 词：等离子体 耦合 衰减特性 多光子非线性COMPTON散射 

分 类 号：O431[机械工程—光学工程]