Photoelectron momentum distributions of the hydrogen molecular ion driven by multicycle near-infrared laser pulses
Journal
Physical Review A
Journal Volume
94
Journal Issue
4
Date Issued
2016
Author(s)
Murakami, M.
Abstract
The photoelectron momentum distributions (PMDs) of the hydrogen molecular ion H2+ driven by strong near-infrared laser pulses are studied based on the ab initio numerical solution of the time-dependent Schrödinger equation and the Volkov wave propagation. Both linear and circular polarization are considered, in accordance with the recent experiment by M. Odenweller et al. [Phys. Rev. A 89, 013424 (2014)PLRAAN1050-294710.1103/PhysRevA.89.013424]. We will discuss the difference between the molecular (diatomic) and the atomic PMDs and the effect of molecular potential to the photoelectron energy. In particular, we demonstrate that the above-threshold ionization spectra of H2+ could upshift their energy when driven by a linearly polarized laser field parallel to the molecular axis.
SDGs
Type
journal article