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Updated: Jul 11, 2026

Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown
Published on: February 14, 2014
Low field laser ionization of argon clusters: the remarkable fragmentation dynamics of doubly ionized clusters
Lionel Poisson1, Kevin D Raffael, Marc-André Gaveau
1Laboratoire Francis Perrin, CEA/DSM/DRECAM/SPAM-CNRS URA 2453, C.E.A. Saclay, F-91191 Gif-sur-Yvette cedex, France. lionel.poisson@cea.fr
Abstract:
We have investigated the fission following a Coulomb explosion in argon clusters (up to Ar800) irradiated by a femtosecond infrared laser with moderate intensity IL approximately 10(13) W cm(-2). We report the a priori surprising observation of well-defined velocity distributions of the ionized fragments Ar+n<50. This is interpreted by the formation of a valence shell excited charged ion, followed by relaxation, charge transfer by autoionizing collision at very short distance, and asymmetric fission.
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