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Lowest threshold lasing modes localized on marginally unstable periodic orbits in a semiconductor microcavity laser

Title
Lowest threshold lasing modes localized on marginally unstable periodic orbits in a semiconductor microcavity laser
Authors
Lee, In-GooYi, Chang-HwanLee, Ji-WonYu, Hyeon-HyeRyu, JinhyeokGwak, SunjaeKim, HyundongOh, Kwang-RyongKim, Chil-Min
DGIST Authors
Kim, Chil-Min
Issue Date
2020-06
Citation
Optics Express, 28(13), 19402-19412
Type
Article
Article Type
Article
Keywords
UNIDIRECTIONAL EMISSIONLABEL-FREESENSITIVITYDESIGN
ISSN
1094-4087
Abstract
The lowest threshold lasing mode in a rounded D-shape microcavity is theoretically analyzed and experimentally demonstrated. To identify the lowest threshold lasing mode, we investigate threshold conditions of different periodic orbits by considering the linear gain condition due to the effective pumping region and total loss consisting of internal and scattering losses in ray dynamics. We compare the ray dynamical result with resonance mode analysis, including gain and loss. We find that the resonance modes localized on the pentagonal marginally unstable periodic orbit have the lowest threshold in our fabrication configuration. Our findings are verified by obtaining the path lengths and far-field patterns of lasing modes. © 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.
URI
http://hdl.handle.net/20.500.11750/12101
DOI
10.1364/OE.396480
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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