Mainz 2026 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MO: Fachverband Molekülphysik
MO 24: Molecular Spectroscopy I
MO 24.5: Vortrag
Donnerstag, 5. März 2026, 12:15–12:30, P 204
Orbital-Resolved Bond-Breaking Asymmetry in the Strong-Field Dissociative Double Ionization Channel (N2+ + O+) of N2O — •Feras Afaneh — Physics Department, Faculty of Science, Hashemite University, P.O.Box 330127, Zarqa 13133, JORDAN
The dissociative double ionization of nitrous oxide (N2O), induced by short-pulse polarized laser fields, was investigated using the COLTRIMS technique. Focusing on the dissociative channel (N2+ + O+), we extracted both the molecular-frame photoelectron angular distributions and the ion sum-momentum distributions. Orientation-dependent ionization rates, analyzed across distinct kinetic energy release (KER) regimes, revealed contributions from multiple molecular orbitals. These results reveal a pronounced asymmetry in bond breaking relative to the instantaneous laser field vector, arising from the interplay between orbital geometry and electron localization-assisted enhanced ionization in stretched molecular configurations under strong-field conditions.
Keywords: molecular dissociation; orbital-resolved ionization; photoelectron angular distribution; nitrous oxide; COLTRIMS technique