title: Photodissociation dynamics of Ar2(+) and Ar3(+) excited by 527 nm photons.
abstract: The photofragmentation dynamics of Ar(2)(+) and Ar(3)(+) clusters has been investigated at a 527 nm wavelength (2.35 eV) using a setup that allows simultaneous detection of the ionic and neutral fragments in a coincidence experiment. Measurement of positions and times of flight enables in principle a complete description of the fragmentation dynamics. The photofragmentation dynamics of Ar(3)(+) clusters is similar to that of Ar(2)(+) with, in addition, the ejection of a third fragment that can be neutral or ionized via a resonant electron capture. This is attributed to the triangular geometry of the Ar(3)(+) ion.
authors.affiliation: UMR 8625, Laboratoire des Collisions Atomiques et Moléculaires, Univ. Paris-Sud, Orsay F-91405, France. valeria.lepere@u-psud.fr
authors.forename: V
authors.initials: V
authors.lastname: Lepère
authors.forename: Y J
authors.initials: YJ
authors.lastname: Picard
authors.forename: M
authors.initials: M
authors.lastname: Barat
authors.forename: J A
authors.initials: JA
authors.lastname: Fayeton
authors.forename: B
authors.initials: B
authors.lastname: Lucas
authors.forename: K
authors.initials: K
authors.lastname: Béroff