Temporally two-dimensional fifth-order Raman scattering on intermolecular vibrations in CS2/pentane binary mixtures

T Steffen, S. Nakashima, K. Duppen

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Abstract

Third- and fifth-order impulsive stimulated Raman scattering experiments are performed to study low-frequency intermolecular vibrations in CS2/pentane binary mixtures. The changes of the optical Kerr effect response cannot be assigned unequivocally to a single microscopic process. In particular, the homogeneous and inhomogeneous line broadening mechanisms cannot be determined. Temporally two-dimensional Raman scattering experiments indicate that the correlation time of fluctuations of the intermolecular potential decreases upon dilution. The experimental results give evidence of strong coupling between the ultrafast coherent vibrations and the slow reorientational diffusion.
Original languageEnglish
Pages (from-to)91 - 96
Number of pages6
JournalLaser Chemistry
Volume19
Issue number1-4
DOIs
Publication statusPublished - 1999
Event8th International Conference on Time-Resolved Vibrational Spectroscopy -
Duration: 7-Apr-199711-Apr-1997

Keywords

  • Raman scattering
  • Kerr effect
  • intermolecular vibrations
  • LIQUID CS2
  • OPTICAL KERR
  • SPECTROSCOPY
  • DYNAMICS
  • ORIGIN
  • MOTION
  • MODES

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