title: Electron localization in molecular fragmentation of H2 by carrier-envelope phase stabilized laser pulses.
abstract: Fully differential data for H2 dissociation in ultrashort (6 fs, 760 nm), linearly polarized, intense (0.44 PW/cm{2}) laser pulses with a stabilized carrier-envelope phase (CEP) were recorded with a reaction microscope. Depending on the CEP, the molecular orientation, and the kinetic energy release (KER), we find asymmetric proton emission at low KERs (0-3 eV), basically predicted by Roudnev and Esry, and much stronger than reported by Kling et al. Wave packet propagation calculations reproduce the salient features and discard, together with the observed KER-independent electron asymmetry, the first ionization step to be the reason for the asymmetric proton emission.
authors.affiliation: Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany.
authors.forename: Manuel
authors.initials: M
authors.lastname: Kremer
authors.forename: Bettina
authors.initials: B
authors.lastname: Fischer
authors.forename: Bernold
authors.initials: B
authors.lastname: Feuerstein
authors.forename: Vitor L B
authors.initials: VL
authors.lastname: de Jesus
authors.forename: Vandana
authors.initials: V
authors.lastname: Sharma
authors.forename: Christian
authors.initials: C
authors.lastname: Hofrichter
authors.forename: Artem
authors.initials: A
authors.lastname: Rudenko
authors.forename: Uwe
authors.initials: U
authors.lastname: Thumm
authors.forename: Claus Dieter
authors.initials: CD
authors.lastname: Schröter
authors.forename: Robert
authors.initials: R
authors.lastname: Moshammer
authors.forename: Joachim
authors.initials: J
authors.lastname: Ullrich