Transient coherent Raman scattering in the time and frequency domain

A new type of Raman spectroscopy is presented: After transient
excitation of molecular modes coherently scattered Raman spectra
are investigated in a depayed probing experiment. The spectral
position of the Raman mode is observed after long delay times. The
dephasing time is obtained from the time dependence of the
scattered amplitudes. Frequency disturbing non-resonant
susceptibilities are eliminated. We report on first experimental
results of transient coherent Raman spectroscopy of liquid CH3CCl3.