Vibrational Excitation of Diatomic Molecular Ions in Strong Field Ionization of Diatomic Molecules

Journal Article · Fri Aug 12 00:00:00 EDT 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.95.073004· OSTI ID:20699304

Kjeldsen, Thomas K; Madsen, Lars Bojer ^[1]

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1. Department of Physics and Astronomy, University of Aarhus, 8000 Aarhus C (Denmark)

A model based on the strong-field and Born-Oppenheimer approximations qualitatively describes the distribution over vibrational states formed in a diatomic molecular ion following ionization of the neutral molecule by intense laser pulses. Good agreement is found with a recent experiment [X. Urbain et al., Phys. Rev. Lett. 92, 163004 (2004)]. In particular, the observed deviation from a Franck-Condon-like distribution is reproduced. Additionally, we demonstrate control of the vibrational distribution by a variation of the peak intensity or a change of frequency of the laser pulse.

• OSTI ID: 20699304
• Journal Information: Physical Review Letters, Vol. 95, Issue 7; Other Information: DOI: 10.1103/PhysRevLett.95.073004; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BORN-OPPENHEIMER APPROXIMATION
CATIONS
EXCITATION
LASERS
MOLECULAR IONS
PHOTOIONIZATION
PHOTON-MOLECULE COLLISIONS
PULSES
VIBRATIONAL STATES