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Unidirectional emission of high-Q scarred modes in a rounded D-shape microcavity

Title
Unidirectional emission of high-Q scarred modes in a rounded D-shape microcavity
Authors
Lee, Ji-WonYi, Chang-HwanKim, Myung-WoonRyu, JinhyeokOh, Kwang-RyongKim, Chil-Min
DGIST Authors
Kim, Chil-Min
Issue Date
2018-12
Citation
Optics Express, 26(26), 34864-34871
Type
Article
Article Type
Article
ISSN
1094-4087
Abstract
We propose a deformed microcavity laser, where a high-Q mode group emits unidirectionally. The cavity comprises three circular arcs and one linear section. To minimize diffraction effects from the boundary, three circular arcs and one linear section are tangentially connected. By adjusting the sizes and the positions of the two sub-circular arcs, unidirectionality is maximized. In an experiment with an InP based InGaAsP semiconductor microcavity laser, a lasing mode group localized on a period-7 unstable periodic orbit emits unidirectionally. In our resonance calculation, a high-Q factor is confirmed. © 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
URI
http://hdl.handle.net/20.500.11750/9461
DOI
10.1364/OE.26.034864
Publisher
Optical Society of America
Related Researcher
  • Author Kim, Chil-Min Micro Laser Laboratory
  • Research Interests Laser; Nonlinear Dynamics; Quantum Chaos; Microcavity Laser
Files:
Collection:
Department of Emerging Materials ScienceMicro Laser Laboratory1. Journal Articles


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