The propagation characteristics of terahertz waves in high-temperature magnetized inhomogeneous plasma sheath were investigated theoretically by the shift operator finite difference time domain method. Both the transmission characteristics of left and right circularly polarized terahertz waves propagating in uniform or non-uniform plasma were analyzed. Simulation results reveal that the transmission characteristics of terahertz waves in plasma will be influenced by plasma parameters and the external magnetic field. The plasma sheath has a high pass filtering characteristic to terahertz waves, which provides a significant theoretical basis, to a certain extent, for the “blackout” problem.

中文翻译：

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太赫兹波在等离子体中传输特性的SO-FDTD分析

利用位移算子有限差分时域方法，从理论上研究了太赫兹波在高温磁化非均匀等离子体鞘中的传播特性。分析了在均匀或非均匀等离子体中传播的左右圆偏振太赫兹波的传输特性。仿真结果表明，太赫兹波在等离子体中的传输特性会受到等离子体参数和外部磁场的影响。等离子体鞘层对太赫兹波具有高通滤波特性，这在一定程度上为“停电”问题提供了重要的理论依据。