标题： 基于零介电常数超材料的光学隔离 显示英文标题

标题： Optical isolation with epsilon-near-zero metamaterials

摘要： 我们建议一种在磁活性极端参数超材料中隔离圆偏振波的原理。 通过理论分析和数值模拟，我们表明具有极端参数的超材料，例如零介电常数材料（ENZ），当与磁光材料结合时，对于给定手性的前向圆偏振波是透明的，而对于相同手性的后向传播波则是不透明的。 我们理论研究了这种混合材料的两种可能实现方式：(1) 金属-介质堆栈的情况；以及 (2) 矩形波导在其截止频率附近。 我们证明这些结构可以作为圆偏振波的紧凑隔离器使用。 显示英文摘要

摘要： We suggest a principle for isolation of circularly polarized waves in magnetically active extreme-parameter metamaterials. Using theoretical analysis and numerical simulations, we show that metamaterials with extreme parameters, such as epsilon-near-zero materials (ENZ), when merged with magneto-optical materials, become transparent for forward circularly polarized waves of a given handedness and opaque for backward propagating waves of the same handedness. We theoretically study two possible implementations of such hybrid materials: (1) the case of metal-dielectric stacks; and (2) rectangular waveguide near its cut-off frequency. We prove that these structures can be utilized as compact isolators for circularly polarized waves.