Signatures of bound-state-assisted nonsequential double ionization

Journal Article · Wed Jul 15 04:00:00 EDT 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.80.013412· OSTI ID:21313290

Sukiasyan, Suren ^[1]; McDonald, Chris; Van Vlack, Cole; Destefani, Carlos; Fennel, Thomas; Brabec, Thomas ^[1]; Ivanov, Misha ^[2]

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1. Department of Physics and Center for Research in Photonics, University of Ottawa, 150 Louis Pasteur, Ontario, K1N 6N5 (Canada)
2. National Research Council, 100 Sussex Drive, Ottawa, Ontario, K1A 0R6 (Canada)

The time-dependent multiconfiguration Hartree method is optimized for intense laser dynamics and applied to nonsequential double ionization in a two-electron diatomic model molecule with two dimensions per electron. The efficiency of our method brings these calculations from the realm of large scale computation facilities to single processor machines. The resulting two-electron spectrum exhibits pronounced signatures from which the ionic bound states involved in nonsequential double ionization are retrieved with the help of a semiclassical model. A mechanism for the ionization dynamics is suggested.

• OSTI ID: 21313290
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 80; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BOUND STATE
ELECTRON SPECTRA
ELECTRONS
LASERS
MOLECULES
PHOTOELECTRON SPECTROSCOPY
PHOTOIONIZATION
SEMICLASSICAL APPROXIMATION
TIME DEPENDENCE