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Non-Hermitian analysis of surface creeping waves in optical microcavities: Nature of external resonances

Title
Non-Hermitian analysis of surface creeping waves in optical microcavities: Nature of external resonances
Authors
Yi, Chang HwanYu, Hyeon-HyeKim, Chil-Min
DGIST Authors
Yi, Chang Hwan; Yu, Hyeon-Hye; Kim, Chil-Min
Issue Date
2020-12
Citation
Physical Review A, 102(6), 063503
Type
Article
Article Type
Article
Keywords
Different classExternal resonanceOptical microcavitiesStructural characteristicsTransverse magnetic polarizationElectromagnetic wave propagationMicrocavitiesPolarizationBrewster angleComplex wavesCreeping waves
ISSN
2469-9926
Abstract
Undiscovered properties of surface creeping wave states given by complex angular momentum poles, so-called Regge poles (RPs) in optical microcavity scattering, are transparently elucidated on the frameworks of non-Hermitian physics. In particular, we analytically show that the nature of external resonances (ERs) given by complex wave numbers is equivalent to surface creeping wave RPs. Moreover, by obtaining the full structural characteristics of RPs for different polarizations, it is found that notable nontrivial RPs in transverse-magnetic polarization arise owing to the classical Brewster angle. Finally, we explicitly demonstrate the emergence of non-Hermitian degeneracies incorporating different classes of RPs. © 2020 American Physical Society.
URI
http://hdl.handle.net/20.500.11750/12659
DOI
10.1103/PhysRevA.102.063503
Publisher
American Physical Society
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 Emerging Materials ScienceMicro Laser Laboratory1. Journal Articles


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