title: Time-resolved double ionization with few cycle laser pulses.
abstract: Ionization of D2 launches a vibrational wave packet on the ground state of D+2. Removal of the second electron places a pair of D+ ions onto a Coulombic potential. Measuring the D+ kinetic energy determines the time delay between the first and the second ionization. Caught between a falling ionization and a rapidly rising intensity, the typical lifetime of the D+2 intermediate is less than 5 fs when an intense 8.6 fs laser pulse is used. We simulate Coulomb explosion imaging of the ground state wave function of D2 by a 4 fs optical pulse and compare with our experimental observations.
authors.affiliation: National Research Council of Canada, Ottawa, Ontario, Canada K1A 0R6.
authors.forename: F
authors.initials: F
authors.lastname: Légaré
authors.forename: I V
authors.initials: IV
authors.lastname: Litvinyuk
authors.forename: P W
authors.initials: PW
authors.lastname: Dooley
authors.forename: F
authors.initials: F
authors.lastname: Quéré
authors.forename: A D
authors.initials: AD
authors.lastname: Bandrauk
authors.forename: D M
authors.initials: DM
authors.lastname: Villeneuve
authors.forename: P B
authors.initials: PB
authors.lastname: Corkum