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Extremely high Q and unidirectional laser emission due to combination of the Kolmogorov-Arnold-Moser barrier and the chaotic sea in a dielectric microdisk

Title
Extremely high Q and unidirectional laser emission due to combination of the Kolmogorov-Arnold-Moser barrier and the chaotic sea in a dielectric microdisk
Authors
Lee, Ji-WonYi, Chang HwanLee, In-GooKim, Ji-HwanYu, Hyeon-HyeOh, Kwang-RyongKim, Chil-Min
DGIST Authors
Kim, Chil-Min
Issue Date
2018-12
Citation
Optics Letters, 43(24), 6097-6100
Type
Article
Article Type
Article
ISSN
0146-9592
Abstract
Emission characteristics of an oval-shaped microcavity laser are studied. In experiments, modes localized on periodic orbits emit unidirectionally with a narrow in-plane divergence angle of about 12 deg. The origin of high directionality is elucidated by means of classical ray dynamics. Wave calculations show that the Q-factors of the resonances are higher than 108. We explain this extraordinary high Q-factor in relation with a dynamical barrier region where Kolmogorov–Arnold–Moser curves significantly obstruct leakages of resonances. © 2018 Optical Society of America.
URI
http://hdl.handle.net/20.500.11750/9540
DOI
10.1364/OL.43.006097
Publisher
Optical Society of America
Related Researcher
  • Author Kim, Chil-Min Micro Laser Laboratory
  • Research Interests Laser; Nonlinear Dynamics; Quantum Chaos; Microcavity Laser
Files:
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Collection:
Department of Emerging Materials ScienceMicro Laser Laboratory1. Journal Articles


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