Lasing is observed in laser-dye-doped ethanol droplets after two-photon absorption by the dye molecules. The two-photon-pumped lasing emission by the droplets is at a higher frequency than the input laser. Competitive nonlinear-optical effects that occur at high input-laser intensity are discussed.
© 1992 Optical Society of America
Original Manuscript: June 4, 1992
Published: October 15, 1992
A. S. Kwok, J. B. Gillespie, A. Serpengüzel, W.-F. Hsieh, and R. K. Chang, "Two-photon-pumped lasing in microdroplets," Opt. Lett. 17, 1435-1437 (1992)