Unidirectional reflectionless phenomena in a non-Hermitian quantum system of quantum dots coupled to a plasmonic waveguide

被引：23

作者：

Wu, Nan ^{[1
]}

Zhang, Cong ^{[1
]}

Jin, Xing Ri ^{[1
]}

Zhang, Ying Qiao ^{[1
]}

Lee, Youngpak ^{[2
,3
]}

机构：

[1] Yanbian Univ, Dept Phys, Coll Sci, 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：

OPTICS EXPRESS | 2018年 / 26卷 / 04期

基金：

中国国家自然科学基金;

关键词：

NANOWIRE SURFACE-PLASMONS; FANO RESONANCE; TRANSPORT; ENTANGLEMENT; HAMILTONIANS; SCATTERING;

D O I：

10.1364/OE.26.003839

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Unidirectional reflectionless phenomena are investigated theoretically in a non-Hermitian quantum system composed of several quantum dots and a plasmonic waveguide. By adjusting the phase shifts between quantum dots, single- and dual-band unidirectional reflectionlessnesses are realized at exceptional points based on two and three quantum dots coupled to a plasmonic waveguide, respectively. In addition, single- and dual-band unidirectional perfect absorptions with high quality factors are obtained at the vicinity of exceptional points. (c) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.

引用

页码：3839 / 3849

页数：11

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