Oscillatory femtosecond relaxation of photoexcited organic molecules
- 1 March 1987
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 86 (5), 2827-2832
- https://doi.org/10.1063/1.452032
Abstract
The ultrafast relaxation of large organic molecules in solution has been investigated with the transmission correlation technique. The existence of damped sinusoidal decays after photoexcitation has been verified for several organic dyes. This behavior (the first such decay observed on a femtosecond time scale for any material) is explained as quantum beats. For all molecules examined, we have also observed fast initial exponential decays (<100 fs) in addition to previously known picosecond processes.Keywords
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