Advertisement

Vibrational and Electronic Relaxation in Moderate Sized Systems

  • R. M. Hochstrasser
Part of the Springer Series in Chemical Physics book series (CHEMICAL, volume 3)

Abstract

When molecules interact with each other or with an environment it becomes more difficult to obtain information fundamental to a better understanding of molecular dynamics. In a sufficiently dilute gas or molecular beam the molecules can be arranged to be isolated for long enough to carry out an experiment. In high pressure gases or condensed phases there is some question as to whether isolated molecule effects can ever be exposed. Even though the intermolecular interactions will influence the pathways of chemical and physical transformations, the final states are still available for study providing that observations can be made soon enough after the occurrence of the process, yet before the energy distributions are destroyed by medium induced relaxations. A considerable effort has been put into learning about the medium induced relaxation by making direct measurements in condensed phases using subnanosecond laser pulses. It is necessary to make such measurements in time, rather in the frequency domain, because the fluctuations in the energies of the molecular states contribute to the linewidths and this effect can dominate the population relaxation at Sufficiently high temperatures. KAISER, LAUBEREAU and coworkers [1–3] have demonstrated this effect for vibrational levels of a number of liquids in showing that Raman linewidths are mainly determined by dephasing.

Keywords

Stimulate Raman Scattering Vibrational Relaxation Driving Field Pure Dephasing Soret Region 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    D. von der Linde, A. Laubereau and W. Kaiser, Phys. Rev. Letts., 26, 954 (1971).ADSCrossRefGoogle Scholar
  2. 2.
    A. Laubereau, D. von der Linde and W. Kaiser, Phys. Rev. Letts., 28, 1162 (1972).ADSCrossRefGoogle Scholar
  3. 3.
    A. Laubereau and W. Kaiser, Opto-Electron. 6, 1 (1974).CrossRefGoogle Scholar
  4. 4.
    R. M. Hochstrasser, F. Novak and C. Nyi, Israeli Chem. (in press).Google Scholar
  5. 5.
    R. M. Hochstrasser and F. Novak, Chem. Phys. Letts., 53, 3 (1978).ADSCrossRefGoogle Scholar
  6. 6.
    R. M. Hochstrasser and C. Nyi, in process of publication.Google Scholar
  7. 7.
    R. M. Hochstrasser and T. Y. Li, J. Molec. Spectry., 41, 297 (1972).ADSCrossRefGoogle Scholar
  8. 8.
    R. R. Alfano and S. L. Shapiro, Phys. Rev. Letts., 24, 592 (1970).ADSCrossRefGoogle Scholar
  9. 9.
    B. R. Weisman and B. Greene, unpublished results from this laboratory.Google Scholar
  10. 10.
    R. M. Hochstrasser, B. Greene, B. R. Weisman and W. A. Eaton, in process of publication.Google Scholar
  11. 11.
    Q. H. Gibson, Biochem. J. 71, 293 (1959).Google Scholar
  12. 12.
    B. Alpert, R. Banerjee and L. Lindquist, Biochem. Biophys. Res. Comm., 46, 913 (1972).CrossRefGoogle Scholar
  13. 13.
    I. Abram, R. M. Hochstrasser, J. E. Kohl, M. G. Semack and D. White, Chem. Phys. Letts., 52, 1 (1977).ADSCrossRefGoogle Scholar
  14. 14.
    G. Zumofeu and K. Dressier, J. Chem. Phys., 64, 5198 (1976).ADSCrossRefGoogle Scholar
  15. 15.
    K. Dressier, O. Oehler and D. A. Smith, Phys. Rev. Letts., 34, 1364 (1975).ADSCrossRefGoogle Scholar
  16. 16.
    I. Abram, R. M. Hochstrasser, J. E. Kohl, M. Semack and D. White, (to be published).Google Scholar
  17. 17.
    J. Hoshen and J. Jortner, J. Chem. Phys., 56,533 (1972).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1978

Authors and Affiliations

  • R. M. Hochstrasser
    • 1
  1. 1.Department of Chemistry and Laboratory for Research on the Structure of MatterUniv. of PennsylvaniaPhiladelphiaUSA

Personalised recommendations