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Published December 16, 1983 | public
Journal Article

Picosecond pump-probe multiphoton ionization of isolated molecules: IVR and coherence


Picosecond time-resolved multiphoton ionization spectroscopy of isolated trans-stilbene and aniline is reported. Non-exponential decay of trans-stilbene is observed and evidence for vibrational energy redistribution is presented. The rate of IVR is found to be about 0.5 × 10^(12) s^(−1) at 296 K. The excess energy dependence of the isomerization rate is determined for total vibrational energy of 2000–4500 cm^(−1). Comparison with calculated thermally averaged rates and beam data is made.

Additional Information

© 1983 Elsevier B.V. Received 14 October 1983. We thank the National Science Foundation for support of this research. We also thank L. Khundkar (Zeta) for his time and help with the calculation of the thermal averaging. One of us (AHZ) wishes to thank the Alexander von Humboldt Foundation for the award, and Professor Dr. E. Schlag for his generous hospitality and stimulating discussions.

Additional details

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