论文标题
Moiré双曲线跨面
Moiré Hyperbolic Metasurfaces
论文作者
论文摘要
二二维材料（例如双层石墨烯和过渡金属二核化剂）的最新进展使许多与MoiréPhysics相关的异常现象。但是，其中几种效果需要在原子量表上要求操纵超晶格，例如仔细控制两个紧密间隔的原子晶格之间的旋转角度。在这里，我们研究了莫伊尔双曲线血浆（HMTSS），在介质尺度上揭示了类似现象。已知HMTS支持限制的表面波直接朝着由元表分散确定的特定方向。通过旋转两个相对于彼此耦合的HMTS，我们揭示了丰富的分散工程，魔法角度的拓扑过渡，宽带田间载体和等离子体旋转式旋转现象。这些发现为推进跨表面光学器件的出色机会提供了非凡的机会，并通过Moiré物理和二曲构概念丰富了它。
Recent advances in twistronics of low-dimensional materials, such as bilayer graphene and transition-metal dichalcogenides, have enabled a plethora of unusual phenomena associated with moiré physics. However, several of these effects require demanding manipulation of superlattices at the atomic scale, such as the careful control of rotation angle between two closely spaced atomic lattices. Here, we study moiré hyperbolic plasmons in pairs of hyperbolic metasurfaces (HMTSs), unveiling analogous phenomena at the mesoscopic scale. HMTSs are known to support confined surface waves collimated towards specific directions determined by the metasurface dispersion. By rotating two evanescently coupled HMTSs with respect to one another, we unveil rich dispersion engineering, topological transitions at magic angles, broadband field canalization, and plasmon spin-Hall phenomena. These findings open remarkable opportunities to advance metasurface optics, enriching it with moiré physics and twistronic concepts.
