Diodelike Asymmetric Transmission of Linearly Polarized Waves Using Magnetoelectric Coupling and Electromagnetic Wave Tunneling
Diodelike Asymmetric Transmission of Linearly Polarized Waves Using Magnetoelectric Coupling and Electromagnetic Wave Tunneling
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DOI：
10.1103/physrevlett.108.213905
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发表时间：
2012-05-24
影响因子：
8.6
通讯作者：
Ozbay, Ekmel
中科院分区：
文献类型：
--
作者：
Mutlu, Mehmet;Akosman, Ahmet E.;Ozbay, Ekmel
本文从理论和实验上研究了线偏振波在一种新型的二极管状三层手征结构中的非对称、互易、无衍射传输。所利用的物理机制是基于在一个方向上的交叉偏振传输的最大化，由于由特殊的本征态组合，这是有效地控制通过夹在这些层之间的金属亚波长网格的电磁隧穿决定的偏振选择性。模拟和微波实验结果表明，在垂直入射时，在一个方向上几乎全部的强度传输，而在相反的方向上只有很小的强度传输。
An asymmetric, reciprocal, diffraction-free transmission of linearly polarized waves in a new diodelike, three-layer, ultrathin, chiral structure is studied theoretically and experimentally. The exploited physical mechanism is based on the maximization of the cross-polarized transmission in one direction due to the polarization selectivity dictated by the peculiar eigenstate combination, which is efficiently controlled by the electromagnetic tunneling through the metallic subwavelength mesh sandwiched between these layers. Simulation and microwave experiment results demonstrate a nearly total intensity transmission at normal incidence in one direction and a small intensity transmission in the opposite direction.