Study on the attenuation characteristic of terahertz wave through a non-uniform magnetized plasma
Study on the attenuation characteristic of terahertz wave through a non-uniform magnetized plasma
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DOI：
10.1080/09205071.2018.1430621
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发表时间：
2018-01-01
影响因子：
1.3
通讯作者：
Li, Bin
中科院分区：
文献类型：
--
作者：
Tian, Yunxian;Yan, Weizhong;Li, Bin
本文研究了太赫兹波与非均匀磁化等离子体平板的相互作用。给出了非均匀等离子体中的电场分布，并用它计算了电磁波在等离子体中的衰减。提出并讨论了几种类型的电子密度分布。研究了不同等离子体参数(电子密度、碰撞频率、等离子体厚度)和磁场幅值对太赫兹波衰减特性的影响。文中还给出了未磁化和磁化等离子体中几种典型太赫兹信号频率的透过率。这些仿真结果对飞行通信具有一定的指导意义。
In this paper, the interaction between terahertz wave and a non-uniform magnetized plasma slab is investigated. The electric field distribution in non-uniform plasma is presented and used to calculate the attenuation of the electromagnetic wave through plasma. Several types of electron density profiles are proposed and discussed. Effects of different plasma parameters (electron density, collision frequency, plasma thickness) and magnetic field amplitudes on THz wave attenuation characteristic are investigated. The transmission ratios at several typical THz signal frequencies in both unmagnetized and magnetized plasma are presented as well. These simulation results are meaningful for the flight communication.