Ionization of molecular hydrogen and deuterium by a frequency-doubled Ti:sapphire laser pulses

Abstract

A theoretical study of the intense-field single ionization of molecular hydrogen or deuterium oriented either parallel or perpendicular to a linear polarized laser pulse (400 nm) is performed for different internuclear separations and pulse lengths in an intensity range of $(2-13)\times 10^{13}$W cm${}^{-2}$. The investigation is based on a non-perturbative treatment that solves the full time-dependent Schrödinger equation of both correlated electrons within the fixed-nuclei and the dipole approximation. The results for various internuclear separations are used to obtain the ionization yields of molecular hydrogen and deuterium in their ground vibrational states. An atomic model is used to identify the influence of the intrinsic diatomic two-center character of the problem.

13 pages, 9 figures

References in corpus (4)

• Ionisation of hydrogen molecule in intense ultrashort laser pulses: parallel versus perpendicular orientation
• A simple parameter-free one-center model potential for an effective one-electron description of molecular hydrogen
• Molecular orbitals and strong-field approximation
• Antiproton collisions with molecular hydrogen

Cited by in corpus (7)

• Alignment-Dependent Ionization of Molecular Hydrogen in Intense Laser Fields
• Ionization behavior of molecular hydrogen in intense laser fields: Influence of molecular vibration and alignment
• Break-down of the single-active-electron approximation for one-photon ionization of the B ${}^1{\Sigma }_u^{+}$ state of H${}_2$ exposed to intense laser fields
• Imaging of the umbrella motion and tunneling in the ammonia molecule by strong-field ionization
• Shapes of leading tunnelling trajectories for single-electron molecular ionization
• A Review on Ab Initio Approaches for Multielectron Dynamics
• Implementation of a time-dependent multiconfiguration self-consistent-field method for coupled electron-nuclear dynamics in diatomic molecules driven by intense laser pulses