Center for Molecular Spectroscopy and Dynamics

2017 119th KCS Meeting

Unlike spontaneous Raman effect, stimulated Raman scattering (SRS) generates fields allowing Raman signals from individual scatterers to add up into a highly directional, high-brightness coherent beam. In our experiment, however, at intensive Raman pump energy, the SRS spectra is distorted dramatically. The experimental results are compared with theoretical simulation by numerically solving the third order susceptibility. These results show that nonlinear effects such as XPM, SPM can be included in SRS signals with intense Raman pump pulse. It will be presented to discuss about the characteristic dispersion-shaped SRL signals related to XPM.