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.
16-feb-2023
Settore FIS/03 - Fisica Della Materia
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].
File in questo prodotto:
File Dimensione Formato  
Quantum correlation of electron and ion energy in the dissociative strong-field ionization of H2_1.pdf

accesso aperto

Descrizione: articolo
Tipologia: Versione Editoriale
Dimensione 1.54 MB
Formato Adobe PDF
1.54 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/583215
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact