Emission Characteristics of a deformed microcavity laser comprised of two half-ellipses
- 주제(키워드) 도움말 microcavity laser
- 발행기관 서강대학교 일반대학원
- 지도교수 김칠민
- 발행년도 2013
- 학위수여년월 2013. 8
- 학위명 석사
- 학과 및 전공 도움말 일반대학원 물리학과
- 실제URI http://www.dcollection.net/handler/sogang/000000052454
- 본문언어 영어
- 저작권 서강대학교 논문은 저작권 보호를 받습니다.
초록/요약 도움말
We study the emission characteristics of a microcavity laser comprised two half-ellipses. The microcavity has two geometrical parameters, two eccentricities, which permit a control of the directional emission. The microcavity with two small eccentricities enables to generate a whispering gallery mode (WGM) with high Q-factor. For the analysis of the emission characteristics, we study ray dynamical behavior in the cavity such as Poincare Surface of Section (PSOS) and Survival Probability Distribution (SPD). In the numerical analysis, the rays are chaotic with several island chains in PSOS, and the SPD exhibit tongues below the critical line which indicates directional emission. In the experiment, the laser has high Q-factor but does not generate directional emission that is not confirmed with the numerical analysis.
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