Liu Yi, Ouyang Chunmei, Xu Quan, Ma Jiajun, Li Yanfeng, Han Jiaguang, Zhang Weili
Opt Express. 2022 Sep 26;30(20):36552-36563. doi: 10.1364/OE.471911.
Moiré configurations have recently attracted much attention due to their ability to enhance photonic responses and manipulate surface waves in the subwavelength ranges. However, previous studies have usually been focused on natural hyperbolic materials with limitations on patterning procedures, controlling rotation angles, and merely manipulating electric surface plasmons. Here, we theoretically and numerically investigate a novel magnetic moiré hyperbolic metasurface in the terahertz region, which enables two types of topological transition and a plethora of unusual magnetic moiré effects (magnetic surface wave manipulation, dispersion engineering, magic angles, spacer-dependent topological transition, and local field enhancement). This work extends twistronics and moiré physics to the terahertz region and magnetic polaritons, with potential applications in quantum physics, energy transfer, and planarized magnetic plasmonic devices.
莫尔条纹结构最近因其能够增强光子响应并在亚波长范围内操纵表面波而备受关注。然而，以往的研究通常集中在天然双曲线材料上，这些材料在图案化工艺、控制旋转角度以及仅操纵电表面等离子体方面存在局限性。在这里，我们从理论和数值上研究了太赫兹区域中的一种新型磁莫尔双曲线超表面，它能够实现两种类型的拓扑转变以及大量不寻常的磁莫尔效应（磁表面波操纵、色散工程、魔角、与间隔层相关的拓扑转变以及局部场增强）。这项工作将扭曲电子学和莫尔物理学扩展到太赫兹区域和磁极化激元，在量子物理学、能量转移和平坦化磁等离子体器件方面具有潜在应用。
