Two-photon-pumped lasing in microdroplets

A. S. Kwok, J. B. Gillespie, A. Serpengüzel, W.-F. Hsieh, R. K. Chang
1992 Optics Letters  
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.
doi:10.1364/ol.17.001435 pmid:19798205 fatcat:dcq7sopd2rhtljscppflfffyde