黄殷

副教授 硕士生导师

入职时间:2013-07-08

所在单位:物理学院

学历:博士研究生毕业

性别:男

学位:博士学位

在职信息:在职

毕业院校:美国路易斯安那州立大学

学科:电子科学与技术

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2017年论文发表

发布时间:2020-04-25

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Our paper " Unidirectional reflectionless light propagation at exceptional points" by Yin Huang, Yuecheng Shen, Changjun Min, Shanhui Fan and Georgios Veronis* is accepted in Nanophotonics-berlin.

Abstract: In this paper, we provide a comprehensive review of unidirectional reflectionless light propagation in photonic devices at exceptional points (EPs). EPs, which are branch point singularities of the spectrum, associated with the coalescence of both eigenvalues and corresponding eigenstates, lead to interesting phenomena, such as level repulsion and crossing, bifurcation, chaos, and phase transitions in open quantum systems described by non-Hermitian Hamiltonians. Recently, it was shown that judiciously designed photonic synthetic matters could mimic the complex non-Hermitian Hamiltonians in quantum mechanics and realize unidirectional reflection at optical EPs. Unidirectional reflectionlessness is of great interest for optical invisibility. Achieving unidirectional reflectionless light propagation could also be potentially important for developing optical devices, such as optical network analyzers. Here, we discuss unidirectional reflectionlessness at EPs in both parity-time (PT)-symmetric and non-PT-symmetric optical systems. We also provide an outlook on possible future directions in this field.  

     

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