论文标题
次波长无源光学隔离器，使用基于Weyl半法的光子结构
Sub-Wavelength Passive Optical Isolators Using Photonic Structures Based on Weyl Semimetals
论文作者
论文摘要
我们使用最近发现的磁性Weyl半法线设计了亚波长高性能的非晶体光学设备。这些被动的散装材料表现出异常的霍尔效应，这会导致磁性效应，其数量级高于常规材料中的数量级，而无需任何外部磁性偏置。我们设计了Faraday和Voigt几何形状的两个光学隔离器。与传统的磁光配置相比，这些隔离器的尺寸降低了三个数量级。我们的结果表明，磁性Weyl半法可能会为设计各种非偏置组件设计的光子学途径打开新的途径。
We design sub-wavelength high-performing non-reciprocal optical devices using recently discovered magnetic Weyl semimetals. These passive bulk topological materials exhibit anomalous Hall effect which results in magnetooptical effects that are orders of magnitude higher than those in conventional materials, without the need of any external magnetic bias. We design two optical isolators of both Faraday and Voigt geometries. These isolators have dimensions that are reduced by three orders of magnitude compared to conventional magneto-optical configurations. Our results indicate that the magnetic Weyl semimetals may open up new avenues in photonics for the design of various nonreciprocal components.
