Numéro
J. Phys. IV France
Volume 04, Numéro C4, Avril 1994
3rd International Conference Laser M2P
Page(s) C4-647 - C4-650
DOI http://dx.doi.org/10.1051/jp4:19944172
3rd International Conference Laser M2P

J. Phys. IV France 04 (1994) C4-647-C4-650

DOI: 10.1051/jp4:19944172

Four-photon ionization dynamics of xenon

C. BORDAS1, M.J. DYER2, T.A. FAIRFIELD2, M. SAEED2 and H. HELM2

1  Laboratoire de Spectrométrie Ionique et Moléculaire, URA 171 du CNRS, Université Lyon I, Bât. 205, 43 Bd du 11 Novembre 1918, 69622 Villeurbanne cedex, France
2  Molecular Physics Laboratory, SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025, U.S.A.


Abstract
Three-photon resonance enhanced four-photon ionization of xenon at wavelengths between 313 and 371 nm has been investigated by means of a novel photoelectron imaging spectrometer [1]. Photoelectron images provide a direct view of the squared angular wave functions of the free electrons as well as their energy distribution. Preferential formation of Xe+ (2P1/2) is observed when intermediate ns [3/2] (J=1) states belonging to the 2P3/2 core series are excited in the three-photon step. The opposite behaviour is observed for the 7s' [1/2] (J=1) state. For the nd states the abundance of photoions in each fine structure state closely mirrors the core character of the three-photon intermediate.



© EDP Sciences 1994