2 papers
physics.optics2006
Validation of Lasing in Active Nanocavities
Yong-Seok Choi, Matthew T. Rakher, Kevin Hennessy +5
An unambiguous proof of lasing in an active nanocavity with ultrahigh spontaneous emission coupling factor (beta = 0.65) is presented. To distinguish the subtle lasing threshold fe…
physics.optics2001
An ultrahigh-Q microsphere laser based on the evanescent-wave-coupled gain
Yong-Seok Choi, Hee-Jong Moon, Sang Wook Kim +1
We have demonstrated an ultrahigh-Q whispering-gallery-mode (WGM) microsphere laser based on the evanescent-wave-coupled gain. Dye molecules outside the sphere near the equator wer…