We report on the strong field ionization of H2 by a corotating two-color laser field. We measure the electron momentum distribution in coincidence with the kinetic energy release (KER) of dissociating hydrogen molecules. In addition to a characteristic half-moon structure, we observe a low-energy structure in the electron momentum distribution at a KER of about 3.5 eV. We speculate that the outgoing electron interacts with the molecular ion, despite the absence of classical recollisions under these conditions. Time-dependent density functional theory simulations support our conclusions.
Geyer, A., Neufeld, O., Trabert, D., De Giovannini, U., Hofmann, M., Anders, N., et al. (2023). Quantum correlation of electron and ion energy in the dissociative strong-field ionization of H2. PHYSICAL REVIEW RESEARCH, 5(1) [10.1103/PhysRevResearch.5.013123].
Quantum correlation of electron and ion energy in the dissociative strong-field ionization of H2
De Giovannini, U.;
2023-02-16
Abstract
We report on the strong field ionization of H2 by a corotating two-color laser field. We measure the electron momentum distribution in coincidence with the kinetic energy release (KER) of dissociating hydrogen molecules. In addition to a characteristic half-moon structure, we observe a low-energy structure in the electron momentum distribution at a KER of about 3.5 eV. We speculate that the outgoing electron interacts with the molecular ion, despite the absence of classical recollisions under these conditions. Time-dependent density functional theory simulations support our conclusions.File | Dimensione | Formato | |
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