2 papers
physics.optics2004
The dependence of transverse and longitudinal resolutions on incident Gaussian beam widths in the illumination part of optical scanning microscopy
Hyung-Su Chon, Gisung Park, Sang-Bum Lee +4
We studied both theoretically and experimentally the intensity distribution of a Gaussian laser beam when it was focussed by an objective lens with its numerical-aperture (NA) up t…
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…