太赫兹波斜入射高温磁化等离子体的解析法研究  

Application of the analytical method for terahertz waves obliquely incident high-temperature magnetized plasma

作　　者：石玉仁[1] 万晓欢 赵月星 张娟[1] 樊小贝 SHI Yu-ren;WAN Xiao-huan;ZHAO Yue-xing;ZHANG Juan;FAN Xiao-bei(Key Laboratory of Atomic Molecular Physics and Functional Material,College of Physics and Electronic Engineering,Northwest Normal University,Lanzhou 730070,Gansu,China)

机构地区：[1]西北师范大学,物理与电子工程学院/甘肃省原子分子物理与功能材料重点实验,甘肃兰州730070

出　　处：《西北师范大学学报（自然科学版）》2022年第1期44-50,共7页Journal of Northwest Normal University(Natural Science)

基　　金：国家自然科学基金资助项目(12065022,11565021)。

摘　　要：采用解析法研究了太赫兹波斜入射到高温磁化等离子体中的传输特性,结果与Wentzel-Kramers-Brillouin(WKB)法及散射矩阵法所得一致,左旋极化(LCP)波比右旋极化(RCP)波穿透性更强,但在低频段RCP波的透射比LCP波更为复杂.系统研究了外加磁场、电子温度、电子密度、碰撞频率、入射角、等离子体厚度等物理量对传输特性的影响,发现外加磁场和电子温度对透射的影响较为复杂,选取适当的物理参数值对于太赫兹波在等离子体中的透射更为有利.理论结果在一定程度上对解决“黑障”问题和提高通信质量有积极作用.The propagation characteristics of terahertz wave oblique incident into high temperature magnetized plasma are studied by analytical method.The results are consistent with those obtained by Wentzel-Kramers-Brillouin method and scattering matrix method.The left-hand circular polarization(LCP)waves have stronger penetrability than right-hand circular polarization(RCP)waves,but the transmissivity of RCP waves in the low frequency range is more complicated than that of LCP waves.The influence of physical parameters such as external magnetic field,electron temperature,electron density,collision frequency,incident angle,plasma thickness,etc.,on the transmission characteristics is systematically studied.It is found that the influence of the external magnetic field and electron temperature on the transmission is more complicated,and the selection of appropriate physical parameter values is more favorable for the transmission of terahertz waves in the plasma.These theoretical results have a positive effect on solving the“blackout”problem and improving the quality of communication.

关 键 词：太赫兹波 斜入射 解析法 高温磁化等离子体 

分 类 号：O441.4[理学—电磁学]