Abstract

Several nonlinear optical processes concurrently occur in single micrometer-sized droplets that are irradiated by the second-harmonic output of a single-mode Q-switched Nd:YAG laser. The authors review the following observations of stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS) in droplets: (1) the image of the droplets that are emitting SBS and SRS; (2) the long delay and decay time of the SRS pulse; (3) the correlated temporal profiles of SBS and SRS pulses; (4) the high-resolution spectra of SBS; (5) the frequency splitting of a degenerate spherical normal mode in the SRS spectra; and (6) the fine structures in the angular distribution of SRS.

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