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Mechanism of Q-spoiling in deformed optical microcavities

Title
Mechanism of Q-spoiling in deformed optical microcavities
Authors
Yu, Hyeon HyeYi, Chang HwanKim, Chil Min
DGIST Authors
Kim, Chil Min
Issue Date
2015-05
Citation
Optics Express, 23(9), 11054-11062
Type
Article
Article Type
Article
Keywords
WHISPERING-GALLERY-MODEBOUNDARY-ELEMENT METHODLABEL-FREECAVITIESCHAOSLASERCHIPRESONATORSEMISSIONRAY
ISSN
1094-4087
Abstract
It was reported that Q spoiling in a chaotic microcavity is caused by chaos [PRL, 75, 2682 (1995)] and chaos-assisted tunneling [Nature 385, 45 (1997)]. However, even when a cavity is slightly deformed not to exhibit a broad chaotic region in phase space, high Q modes are spoiled. We find that Q spoiling in this region is caused by the transition of a whispering gallery mode (WGM) to a scarred resonance when a WGM interacts with its pair quasi-normal mode through an avoided resonance crossing. We prove that this transition induces Q spoiling in a quadrupole dielectric microcavity by showing that Q factors obtained from the Husimi functions depending on resonance deformation during the transition agree well with those obtained from the complex eigenvalues. (C) 2015 Optical Society of America
URI
http://hdl.handle.net/20.500.11750/5676
DOI
10.1364/OE.23.011054
Publisher
OPTICAL SOC AMER
Related Researcher
  • Author Kim, Chil Min Micro Laser Laboratory
  • Research Interests Laser; Nonlinear Dynamics; Quantum Chaos; Microcavity Laser
Files:
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Collection:
Emerging Materials ScienceMicro Laser Laboratory1. Journal Articles


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