title: Alignment-dependent ionization of N2, O2, and CO2 in intense laser fields.
abstract: The ionization probability of N2, O2, and CO2 in intense laser fields is studied theoretically as a function of the alignment angle by solving the time-dependent Schrödinger equation numerically assuming only the single-active-electron approximation. The results are compared to recent experimental data [D. Pavicić, Phys. Rev. Lett. 98, 243001 (2007)] and good agreement is found for N2 and O2. For CO2 a possible explanation is provided for the failure of simplified single-active-electron models to reproduce the experimentally observed narrow ionization distribution. It is based on a field-induced coherent core-trapping effect.
authors.affiliation: AG Moderne Optik, Institut für Physik, Humboldt-Universität zu Berlin, Newtonstraße 15, D-12489 Berlin, Germany.
authors.forename: Simon
authors.initials: S
authors.lastname: Petretti
authors.forename: Yulian V
authors.initials: YV
authors.lastname: Vanne
authors.forename: Alejandro
authors.initials: A
authors.lastname: Saenz
authors.forename: Alberto
authors.initials: A
authors.lastname: Castro
authors.forename: Piero
authors.initials: P
authors.lastname: Decleva