Electron momentum spectroscopy of H+2 in the presence of laser radiation*
1 Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Moscow Region, Dubna 141980, Russia
2 Department of Nuclear Physics and Quantum Theory of Collisions, Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
Received: 30 September 2016
Received in final form: 1 December 2016
Published online: 7 February 2017
Theoretical analysis of laser-assisted electron impact ionization of a hydrogen molecular ion H+2 at high impact energy and large momentum transfer is carried out. The laser-field effects on the incoming and outgoing electrons are taken into account using the Volkov functions. The field-dressing of the target electron is treated with a quasistatic state approach. Calculations for laser radiation with frequency ω = 1.55 eV and intensity I = 5 × 1011 W/cm2 exhibit strong laser influence on the molecular bond oscillation in laser-assisted electron momentum distributions.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2017