DIRECT COMPARISON BETWEEN FEMTOSECOND OPTICAL KERR-EFFECT AND HIGH-RESOLUTION LIGHT-SCATTERING MEASUREMENTS

We have performed optically heterodyne-detected optical Kerr effect me asurement for transparent liquids with ultrashort light pulses. In add ition, the depolarized low-frequency light scattering measurement has been performed by means of a double monochromator and a high resolutio n Sandercock-type tandem Fabry-Perot interferometer. The frequency res ponse functions obtained from the both data have been directly compare d. They agree perfectly for a wide frequency range. This result is the first experimental evidence for the equivalence between the time- and frequency-domain measurements.