LAUSR

For the first time, stimulated Raman scattering is detected in microcrystalline powder of barium nitrate under excitation by ultrashort (60 ps) pulses of a YAG:Nd3+ laser operated at a wavelength of 532 nm. First and second Stokes components with a frequency shift of 1047 cm−1 are observed in the stimulated Raman scattering spectrum of the powder. Spectra observed in the microcrystalline powder were juxtaposed with the corresponding spectra of spontaneous and stimulated Raman scattering in a Ba(NO3)2 single crystal. The studies performed open the possibility for creating lasers based on stimulated Raman scattering in microcrystalline powders of inorganic compounds with various molecular groups.