Optical resonance in inhomogeneous parity-time symmetric systems

• 作者: Linshan Sun Bo Zhao Jiaqi Yuan Yanrong Zhang Ming Kang Jing Chen
• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2021,（7）
• 所属期刊栏目: Nanophotonics, Metamaterials, and Plasmonics
• 页码范围: 105-109
• 页数: 5页
• 语种: 英文
• DOI: 10.3788/COL202119.073601

摘要

We show that inhomogeneous waveguides of slowly varied parity-time[PT]symmetry support localized optical resonances.The resonance is closely related to the formation of exceptional points separating exact and broken PT phases.Salient features of this kind of non-Hermitian resonance,including the formation of half-vortex flux and the discrete nature,are discussed.This investigation highlights the unprecedented uniqueness of field dynamics in non-Hermitian systems with many potential adaptive applications.