基于近场耦合的超紧凑非厄米等离子体波导系统中的双波段单向无反射现象
Dual-band unidirectional reflectionless phenomena in an ultracompact non-Hermitian plasmonic waveguide system based on near-field coupling.
作者信息
Zhang Cong, Bai Ruiping, Gu Xintong, Jin Xing Ri, Zhang Ying Qiao, Lee YoungPak
出版信息
Opt Express. 2017 Oct 2;25(20):24281-24289. doi: 10.1364/OE.25.024281.
PMID:29041373
Abstract
Dual-band unidirectional reflectionlessness and coherent perfect absorption (CPA) are demonstrated in a non-Hermitian plasmonic waveguide system based on near-field coupling between a single resonator and the resonant modes of two resonators showing an electromagnetically induced-transparency-like (EIT-like) effect. The non-Hermitian plasmonic system consists of three metal-insulator-metal (MIM) resonators coupled to a MIM plasmonic waveguide.
摘要
在基于单个谐振器与两个呈现类电磁诱导透明（EIT 类）效应的谐振器的谐振模式之间的近场耦合的非厄米等离子体波导系统中，展示了双频单向无反射和相干完美吸收（CPA）。该非厄米等离子体系统由三个耦合到一个 MIM 等离子体波导的金属 - 绝缘体 - 金属（MIM）谐振器组成。
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