强激光在磁化多组分等离子体中的色散关系  

Dispersion Relation of High Power Laser in Magnetized Multicomponent Plasma

作　　者：罗月娥 王学文 LUO Yue-e;WANG Xue-wen(School of Mechanical and Electronic Engineering,Jingdezhen University,Jingdezhen 333400,Jiangxi Province,China;School of Information Engineering,Jingdezhen University,Jingdezhen 333400,Jiangxi Province,China)

机构地区：[1]景德镇学院机械电子工程学院,江西景德镇333400 [2]景德镇学院信息工程学院,江西景德镇333400

出　　处：《景德镇学院学报》2022年第6期1-4,共4页Journal of JingDeZhen University

基　　金：江西省教育厅科技项目(GJJ202808,GJJ202816);景德镇市科技计划项目(20202GYZD015-03)。

摘　　要：色散关系是研究激光与等离子体相互作用的基础。本文利用麦克斯韦方程组,结合磁流体力学中的相对论性动量方程,推导出圆偏振强激光在磁化的电子-正电子对等离子体、电子-正电子-离子等离子体中平行于磁场方向传播时的色散关系、折射率以及截止频率,并重点讨论正电子组分、磁场、激光的偏振性对它们的影响。Dispersion relation is the basis of studying the interaction between laser and plasma.In this paper,the dispersion relation,refractive index and cut-off frequency of circularly polarized intense laser propagating parallel to the magnetic field direction in magnetized electron,positron to plasma,electron,positron and ion plasma are derived by using maxwell equations and the relativistic momentum equation in magnetohydrodynamics.The influence of positron component,magnetic field and laser polarization on them is emphatically discussed.

关 键 词：强激光 磁化等离子体 多组分等离子体 色散关系 折射率 

分 类 号：O437[机械工程—光学工程]