Inelastic emission characteristics from individual ethanol droplets (60-μm diameter) containing Rhodamine 6G dye and pumped by a cw laser (514.5 nm) were investigated. Laser emission was confirmed by noting the spectral, temporal, and output-versus-input intensity behavior. The liquid–air boundary of the droplets provides the optical feedback at selected wavelengths corresponding to the morphology-dependent resonances of a spherical droplet.
© 1984 Optical Society of America
Original Manuscript: June 20, 1984
Manuscript Accepted: August 21, 1984
Published: November 1, 1984
H.-M. Tzeng, K. F. Wall, M. B. Long, and R. K. Chang, "Laser emission from individual droplets at wavelengths corresponding to morphology-dependent resonances," Opt. Lett. 9, 499-501 (1984)