Dissociative multiple ionization of diatomic molecules by extreme-ultraviolet free-electron-laser pulses

Journal Article · Wed Jun 15 04:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.063415· OSTI ID:21550138

Leth, Henriette Astrup; Madsen, Lars Bojer ^[1]

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1. Lundbeck Foundation Theoretical Center for Quantum System Research, Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C (Denmark)

Nuclear dynamics in dissociative multiple ionization processes of diatomic molecules exposed to extreme-ultraviolet free-electron-laser pulses is studied theoretically using the Monte Carlo wave packet approach. By simulated detection of the emitted electrons, the model reduces a full propagation of the system to propagations of the nuclear wave packet in one specific electronic charge state at a time. Suggested ionization channels can be examined, and kinetic energy release spectra for the nuclei can be calculated and compared with experiments. Double ionization of O{sub 2} is studied as an example, and good agreement with published experimental data is obtained by simulating the dynamics on ten different electronic Born-Oppenheimer curves.

• OSTI ID: 21550138
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
APPROXIMATIONS
BORN-OPPENHEIMER APPROXIMATION
CALCULATION METHODS
DATA
ELECTROMAGNETIC RADIATION
ELECTRON EMISSION
EMISSION
ENERGY
EXPERIMENTAL DATA
EXTREME ULTRAVIOLET RADIATION
FREE ELECTRON LASERS
INFORMATION
IONIZATION
KINETIC ENERGY
LASERS
MOLECULES
MONTE CARLO METHOD
NUMERICAL DATA
PULSES
RADIATIONS
SIMULATION
SPECTRA
ULTRAVIOLET RADIATION
WAVE PACKETS