Table of Contents
Laser Chemistry
Volume 19, Issue 1-4, Pages 389-392

Spectral Hole Burning and Evidence for Vibrational Energy Migration of H-Bonded Molecules Observed With Transient Infrared Spectroscopy

Physik Department Ell, Technische Universität München, James-Franck-Str., Garching 85748, Germany

Received 4 April 1997

Copyright © 1999 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Via intense ps-excitation of the OH-stretching vibration of ethanol diluted in CCl4 we succeed in spectral hole burning within the inhomogeneously broadened oligomer band. The lifetime of the transient hole and the v=1-level of the OH-stetch of associated ethanol molecules are determined to be about 1.2 and 1.7 ps, respectively. Further dynamical features are discussed which give evidence for energy migration within the H-bonded ethanol chains and subsequent breaking of the oligomers into shorter fragments.