Simultaneous Manipulation of Electric and Magnetic Surface Waves by Topological Hyperbolic Metasurfaces,ACS Applied Electronic Materials

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Simultaneous Manipulation of Electric and Magnetic Surface Waves by Topological Hyperbolic Metasurfaces
ACS Applied Electronic Materials ( IF 4.3 ) Pub Date : 2021-09-15 , DOI: 10.1021/acsaelm.1c00654
Yi Liu ₁ , Chunmei Ouyang ₁ , Peixia Zheng ₂ , Jiajun Ma ₁ , Quan Xu ₁ , Xiaoqiang Su ₃ , Yanfeng Li ₁ , Zhen Tian ₁ , Jianqiang Gu ₁ , Liyuan Liu ₁ , Jiaguang Han ₁ , Weili Zhang ₄

Affiliation

Hyperbolic metasurfaces (HMSs) that possess special dispersion properties have attracted immense attention owing to their capability of manipulating electromagnetic waves in the near field. However, in previous HMSs, electric and magnetic surface waves are excited and manipulated individually. Simultaneous control of electric and magnetic surface waves has not been studied, in particular, in HMSs with multiple energy bands. Here, we propose and demonstrate a 2D electromagnetic HMS that enables the propagation of both electric and magnetic surface waves by different means of terahertz radiation excitation, and there are independent self-collimation frequencies in the orthogonal directions. The experimental observations agree well with numerical simulations. The proposed HMS opens an unprecedented avenue for nondiffracting transmission and near-field focusing and shows exceptional prospects in designing planar photonic devices, hyperlenses, and waveguides.

中文翻译：

通过拓扑双曲超表面同时处理电磁表面波

具有特殊色散特性的双曲超表面（HMS）因其在近场中操纵电磁波的能力而引起了极大的关注。然而，在以前的 HMS 中，电磁表面波是单独激发和操纵的。尚未研究电磁表面波的同时控制，特别是在具有多个能带的 HMS 中。在这里，我们提出并演示了一种二维电磁 HMS，它能够通过不同的太赫兹辐射激发方式同时传播电磁表面波，并且在正交方向上存在独立的自准直频率。实验观察结果与数值模拟非常吻合。

更新日期：2021-09-28

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