DEPOLARIZED STIMULATED GAIN SPECTRA OF LIQUID CS2 AND BENZENE AT ROOM-TEMPERATURE

Depolarized Rayleigh-wing spectra of CS2 and benzene have been recorded using stimulated gain spectroscopy (SGS). Each spectrum is fitted to three different phenomenological models. In the case of CS2, the determined dynamical characteristic parameters are compared to those measured previously by different experimental techniques with good agreement. To adequately describe the SGS spectra of both liquids, an intermediate time scale contribution is needed in addition to a slow reorientational relaxation and a fast broad underdamped oscillator. Compared to CS2, the slow and intermediate relaxation rates of benzene are lower, while the frequency and relaxation rate of the underdamped oscillator are higher.