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Passive Resonances and Active Lasing Modes in a Chaotic Microcavity

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3 Author(s)
Tae-yoon Kwon ; National Creative Research Initiative Center for Controlling Optical Chaos, PaiChai University, Daejeon 302-735, Korea, e-mail: kwonty@sogang.ac.kr ; Chil-min Kim ; Young-jai Park

Passive resonances and active lasing modes in a spiral-shaped dielectric microcavity are investigated. We find that the high-Q resonances are whispering-gallery-like modes, and these resonance modes can be easily excited as lasing modes. We also find that the quasi-scarred resonance, which shows strong directional emission beams from the cavity boundary, can be excited with selectively applied external pumping. As a result, we find that the final quasi-stationary lasing pattern exhibits multimode oscillation of whispering-gallery-like mode and quasi-scarred mode

Published in:

2006 International Conference on Transparent Optical Networks  (Volume:4 )

Date of Conference:

18-22 June 2006