Above-threshold ionization near the 3p4d {sup 1}F{sup o} autoionizing state in magnesium
- Department of Chemistry and The James Franck Institute, University of Chicago, Chicago, Illinois 60637 (United States)
- Departamento de Quimica C-9, Universidad Autonoma de Madrid, 28049 Madrid (Spain)
- Centre des Lasers Intenses et Applications, UMR 5107 du CNRS-CEA-Universite de Bordeaux 1, 351 Cours de la Liberation, F-33405 Talence (France)
Two-photon above-threshold ionization (ATI) relative cross sections from the 3 {sup 1}P state of Mg have been measured using two-color ionization in the focus of a magnetic bottle spectrometer and have been calculated using the Green's-function method in the Feshbach formalism and an L{sup 2}-integrable close-coupling approach, with a basis of L{sup 2}-integrable B-spline functions. We report these cross sections in the region of 3d4p {sup 1}F{sup o} autoionizing state, with photon energies of 3.3-3.6 eV. This is one of the few direct comparisons between ab initio theory and experiments in ATI in the vicinity of a Feshbach resonance. A good agreement between theory and experiment is found in the relative total cross sections.
- OSTI ID:
- 20717775
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 71; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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