Title :
Passive Resonances and Active Lasing Modes in a Chaotic Microcavity
Author :
Kwon, Tae-Yoon ; Kim, Chil-Min ; Park, Young-Jai
Author_Institution :
Nat. Creative Res. Initiative Center for Controlling Opt. Chaos, PaiChai Univ., Daejeon
Abstract :
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
Keywords :
Q-factor; dielectric materials; laser beams; laser modes; microcavity lasers; optical chaos; optical pumping; solid lasers; stimulated emission; whispering gallery modes; active lasing modes; cavity boundary; chaotic microcavity; dielectric microcavity; directional emission beams; external pumping; high-Q resonances; lasing modes; multimode oscillation; passive resonances; quasiscarred resonance; quasistationary lasing pattern; spiral-shaped microcavity; whispering-gallery-like modes; Chaos; Dielectrics; Laser excitation; Laser modes; Microcavities; Optical control; Optical resonators; Q factor; Resonance; Shape; microcavity; optical resonators; quantum chaos; semiconductor lasers;
Conference_Titel :
Transparent Optical Networks, 2006 International Conference on
Conference_Location :
Nottingham
Print_ISBN :
1-4244-0235-2
Electronic_ISBN :
1-4244-0236-0
DOI :
10.1109/ICTON.2006.248451
