Photodissociation dynamics of Ar2(+) and Ar3(+) excited by 527 nm photons.
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.
Lepère
V
V
UMR 8625, Laboratoire des Collisions Atomiques et Moléculaires, Univ. Paris-Sud, Orsay F-91405, France. valeria.lepere@u-psud.fr
Picard
Y J
YJ
Barat
M
M
Fayeton
J A
JA
Lucas
B
B
Béroff
K
K