Interest in asymmetric transmission (AT) at terahertz frequencies has increased dramatically in recent years. We present an all-silicon metamaterial to achieve the AT effect for linearly polarized electromagnetic waves in the terahertz regime. The metamaterial is constructed by rectangular silicon pillars and a thick silicon substrate. The magnetic Mie resonance excited by the incident polarized terahertz wave contributes to the AT effect, which is verified by the field distributions. In addition, the rotation angle and dimensions of the silicon pillars are shown to have a great influence on the AT efficiency. The proposed metamaterial with straightforward design has promising applications in polarization control scenarios.

中文翻译：

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全介电太赫兹超材料中基于米氏共振的线性极化波非对称传输

近年来，对太赫兹频率下的非对称传输（AT）的兴趣急剧增加。我们提出了一种全硅超材料，以实现太赫兹状态下线性极化电磁波的AT效应。超材料由矩形硅柱和厚硅基板构成。入射的极化太赫兹波激发的磁米氏共振有助于AT效应，这已通过场分布得到验证。此外，硅柱的旋转角度和尺寸对AT效率有很大影响。所提出的具有简单设计的超材料在极化控制场景中具有广阔的应用前景。