Unidirectional reflectionlessness and perfect nonreciprocal absorption in stacked asymmetric metamaterial based on near-field coupling

被引：29

作者：

Bai, Ruiping ^{[1
]}

Zhang, Cong ^{[1
]}

Gu, Xintong ^{[1
]}

Jin, Xing Ri ^{[1
]}

Zhang, Ying Qiao ^{[1
]}

Lee, YoungPak ^{[2
,3
]}

机构：

[1] Yanbian Univ, Coll Sci, Dept Phys, Yanji 133002, Jilin, Peoples R China

[2] Hanyang Univ, Quantum Photon Sci Res Ctr, Seoul 133791, South Korea

[3] Hanyang Univ, Dept Phys, Seoul 133791, South Korea

来源：

APPLIED PHYSICS EXPRESS | 2017年 / 10卷 / 11期

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

ELECTROMAGNETICALLY-INDUCED TRANSPARENCY; NON-HERMITIAN HAMILTONIANS; GUIDE-CAVITY SYSTEMS; EXCEPTIONAL POINTS; PROPAGATION; RESONANCE; NANOSTRUCTURES; SYMMETRY; ANALOG;

D O I：

10.7567/APEX.10.112001

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We propose a scheme for achieving unidirectional reflectionlessness and perfect nonreciprocal absorption at the exceptional point, based on near-field coupling in a stacked asymmetric nanostrip metamaterial structure. The result of theoretical analysis shows good agreement with a numerical simulation. Unidirectional reflectionlessness is realized well in wide ranges of the parameters s and a. The absorbance reaches similar to 1 in the +z incident direction, and the contrast ratio of the reflectance between the +z and -z incident directions is similar to 1. (c) 2017 The Japan Society of Applied Physics

引用

页数：4

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