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Rayleigh scatterer-induced steady exceptional points of stable-island modes in a deformed optical microdisk

Title
Rayleigh scatterer-induced steady exceptional points of stable-island modes in a deformed optical microdisk
Authors
Gwak, SunjaeKim, HyundongRyu, JinhyeokYi, Chang-HwanYu, Hyeon-HyeKim, Chil-Min
DGIST Authors
Gwak, Sunjae; Kim, Hyundong; Ryu, Jinhyeok; Yi, Chang-Hwan; Yu, Hyeon-Hye; Kim, Chil-Min
Issue Date
2021-06
Citation
Optics Letters, 46(12), 2980-2983
Type
Article
Keywords
LASER
ISSN
0146-9592
Abstract
A formation of second-order non-Hermitian degeneracies, called exceptional points (EPs), in a chaotic oval-shaped dielectric microdisk is studied. Different symmetric optical modes localized on a stable period-3 orbit coalesce to form chiral EPs. Unlike a circular microdisk perturbed by two scatterers (CTS), our proposed system requires only one scatterer to build chiral EPs. The scatterer positions for counterpropagating EP modes are far distant from one another and almost steady against varying scatterer sizes in contrast to the CTS case. Our results can contribute to establishing a more solid platform for EP-based-device applications with flexibility and easy feasibility in obtaining EPs. © 2021 Optical Society of America.
URI
http://hdl.handle.net/20.500.11750/15540
DOI
10.1364/OL.426470
Publisher
Optical Society of America
Related Researcher
  • Author Kim, Chil-Min Micro Laser Laboratory
  • Research Interests Laser; Nonlinear Dynamics; Quantum Chaos; Microcavity Laser
Files:
There are no files associated with this item.
Collection:
Department of Physics and ChemistryMicro Laser Laboratory1. Journal Articles


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