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Published July 13, 1984 | public
Journal Article

Direct picosecond time resolution of dissipative intramolecular vibrational-energy redistribution (IVR) in isolated molecules


Direct picosecond time resolution of dissipative IVR is reported for the first time. For jet-cooled anthracene with E_(vib) = 1792 cm^(−1), the unrelaxed fluorescence displays a fast decay of ≈75 ps, while the relaxed fluorescence displays a corresponding rise. The onset for dissipative IVR is related to the effective density of states and coupling matrix elements, and reflects the importance of time-resolved measurements.

Additional Information

© 1984 Elsevier Science Publishers B.V. Received 22 May 1984. This material is based upon work supported by the National Science Foundation under Grant No. CHE-8211356.

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