Dual-band unidirectional reflectionless phenomenon based on high-order plasmon resonators in plasmonic waveguide system

被引：3
|
作者：
Yu, Lingxue [1 ]
Zhang, Ying Qiao [1 ]
Jin, Xing Ri [1 ]
Lee, Young Pak [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：
JOURNAL OF NONLINEAR OPTICAL PHYSICS & MATERIALS | 2022年 / 31卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Unidirectional reflectionlessness; exceptional point; plasmonic waveguide; plasmon resonator; ELECTROMAGNETICALLY INDUCED TRANSPARENCY; PARITY-TIME SYMMETRY; PROPAGATION; ABSORPTION; LASER;
D O I：
10.1142/S0218863523500029
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigate the dual-band unidirectional reflectionless phenomenon and near perfect absorption using high-order plasmon resonators at exceptional points based on near-field coupling in plasmonic waveguide system. The system consists of two high-order plasmon resonators end-coupled to a metal-insulator-metal plasmonic waveguide. The reflection for forward (backward) direction is close to 0.85 (0.74), while for backward (forward) direction is approximate to 0 (0) at a frequency of 199.8 THz (206.1 THz), and the quality factor of absorption spectrum is about 257.6 (217.2) at 206.1 THz (199.8 THz) for forward (backward) direction.
引用
收藏
页数：9
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