Table of Contents
Laser Chemistry
Volume 16, Issue 1, Pages 31-41

Short Time Dynamics of Highly Excited Small Polyatomic Molecules Extracted From Laser Spectra

1Department of Pure and Applied Sciences, College of Arts and Sciences, The University of Tokyo Komaba, Meguro-ku, Tokyo 153, Japan
2Department of Chemistry, Massachusetts Institute of Technology, Cambridge, 02139, Massachusetts, USA

Received 30 August 1994

Copyright © 1995 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.


The recent spectroscopic investigations of vibrational dynamics of highly excited acetylene (C2H2), predissociation of vibronically excited NO2, and direct dissociation of OCS in the deep vacuum ultraviolet region are introduced. It is demonstrated that (i) rich and specific information on the excited state dynamics is encoded in various types of observed spectra such as stimulated emission pumping, dispersed fluorescence, laser induced fluorescence, absorption, and photofragment excitation spectra and that (ii) the early stage dynamics after photoexcitation can be extracted from observed spectra by the recently developed techniques, i.e. feature state assignments, a superpolyad Hamiltonian model, the extended autocorrelation method, and hierarchical, statistical and Fourier transform analysis methods.