Abstract
We present a description of the phenomena involved in a time-resolved coherent stimulated scattering experiment of molecules in the liquid state. The case of diiodomethane is used to demonstrate the ability of a polarization analysis to discriminate among the various processes evidenced by a transient grating technique. Oscillatory and nonoscillatory modes are independently revealed, as well as the anisotropic parts of the nonlinear susceptibility tensors associated with each motion. We address the problem of the puzzling signal which may appear at zero time delay, even when the wavelength of the pump and probe pulses is not the same.
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Etchepare, J., Grillon, G. & Arabat, J. Polarization effects in femtosecond time-resolved coherent scattering from molecules in liquids. Appl. Phys. B 49, 425–429 (1989). https://doi.org/10.1007/BF00325344
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DOI: https://doi.org/10.1007/BF00325344