title: Strong Field Molecular Ionization in the Impulsive Limit: Freezing Vibrations with Short Pulses.
abstract: We study strong-field molecular ionization as a function of pulse duration. Experimental measurements of the photoelectron yield for a number of molecules reveal competition between different ionization continua (cationic states) which depends strongly on pulse duration. Surprisingly, in the limit of short pulse duration, we find that a single ionic continuum dominates the yield, whereas multiple continua are produced for longer pulses. Using calculations which take vibrational dynamics into account, we interpret our results in terms of nuclear motion and nonadiabatic dynamics during the ionization process.
authors.affiliation: Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA.
authors.forename: Péter
authors.initials: P
authors.lastname: Sándor
authors.affiliation: Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA.
authors.forename: Vincent
authors.initials: V
authors.lastname: Tagliamonti
authors.affiliation: Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA.
authors.forename: Arthur
authors.initials: A
authors.lastname: Zhao
authors.affiliation: Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok körútja 2, Budapest 1117, Hungary.
authors.forename: Tamás
authors.initials: T
authors.lastname: Rozgonyi
authors.affiliation: University of Vienna, Faculty of Chemistry, Institute of Theoretical Chemistry, Währinger Strasse 17, 1090 Wien, Austria.
authors.forename: Matthias
authors.initials: M
authors.lastname: Ruckenbauer
authors.affiliation: University of Vienna, Faculty of Chemistry, Institute of Theoretical Chemistry, Währinger Strasse 17, 1090 Wien, Austria.
authors.forename: Philipp
authors.initials: P
authors.lastname: Marquetand
authors.affiliation: Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA.
authors.forename: Thomas
authors.initials: T
authors.lastname: Weinacht