Table of Contents
Laser Chemistry
Volume 13, Issue 2, Pages 159-165

Zero- and Nonzero-Nuclear-Spin Isotope Response in Resonantly Enhanced Multiphoton Ionization of Kr nd Xe With Broad Band Lasers

1Foundation for Research and Technology—Hellas, Institute of Electronic Structure and Laser P.O. Box 1527, Heraklion GR 71110, Crete, Greece
2Department of Physics, University of Crete, Heraklion GR 71110, Crete, Greece

Received 9 February 1993

Copyright © 1993 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 abundance of the 83Kr isotope, determined by ion mass analysis following three photon resonant four photon ionization via the 5s’ [1/2]1 state with a broadband laser is found to differ from the expected natural value. This effect is discussed in terms of a change of the ionization response due to the decay of coherence in the intermediate state to its hyperfine structure coupling. The nonzero nuclear spin isotopes of Xe have not shown any effect of this type in three different ionization schemes under the present experimental conditions.