Two-electron ionization of the hydrogen molecule in the presence of a strong laser field: Tunneling and multiphoton modes

摘要

Numerical simulation is used to study one- and two-electron ionization of a diatomic molecule. The channels of its fragmentation in the presence of a strong laser field and the contributions of the direct and sequential channels of double ionization are analyzed. The important role of the interelectron correlations in the system is demonstrated. A significant difference between the mechanisms of double ionization involving tunneling and multiphoton modes is shown. [References: 37]