Determination of the parameters of a nonlinear response of liquids in an acoustic resonance region by the method of nondegenerate four-wave interaction

摘要: The method of nonlinear four-wave interaction spectroscopy was used to record the spectra acoustic resonances seven liquids active in stimulated Brillouin scattering (STBS) at frequencies corresponding backscattering laser radiation neodymium glass. These measurements made it possible determine same experiment STBS gain and decay time velocity propagation hypersound liquids.