Ionization of oriented carbonyl-sulfide molecules by intense circularly polarized laser pulses
Abstract
We present combined experimental and theoretical results on strong-field ionization of oriented carbonyl-sulphide molecules by circularly-polarized laser pulses. The obtained molecular frame photoelectron angular distributions show pronounced asymmetries perpendicular to the direction of the molecular electric dipole moment. These findings are explained by a tunneling model invoking the laser-induced Stark shifts associated with the dipoles and polarizabilities of the molecule and its unrelaxed cation. The focus of the present article is to understand the strong-field ionization of one-dimensionally-oriented polar molecules, in particular asymmetries in the emission direction of the photoelectrons. In the following article (Phys. Rev. A 83, 023406 (2011)) the focus is to understand strong-field ionization from three-dimensionally-oriented asymmetric top molecules, in particular the suppression of electron emission in nodal planes of molecular orbitals.
Keywords
Cite
@article{arxiv.1007.2630,
title = {Ionization of oriented carbonyl-sulfide molecules by intense circularly polarized laser pulses},
author = {Darko Dimitrovski and Mahmoud Abu-samha and Lars Bojer Madsen and Frank Filsinger and Gerard Meijer and Jochen Küpper and Lotte Holmegaard and Line Kalhøj and Jens H. Nielsen and Henrik Stapelfeldt},
journal= {arXiv preprint arXiv:1007.2630},
year = {2011}
}
Comments
13 pages, 10 figures