Theoretical aspects of three-photon two-color ionization of xenon through ac-stark-shifted resonant rydberg states
Summary, in English
We present a theoretical analysis of a recent experiment [J. Opt. Soc. Am. B 6, 1513 (1989)] on two-color threephotonionization of Xe through resonant even-parity Rydberg states. We calculate second-order ac-Stark shifts, two-photon Rabi frequencies, and ionization widths by using wave functions obtained from a multichannel quantum-defect-theory analysis of the Rydberg series in Xe. We perform a detailed description of the experiment, usingthe density-matrix formalism, accounting for the temporal and spatial distributions of the laser fields. Theagreement with the experiment is good except for the ac-Stark shift of the Rydberg states, which, in our calculationis close to the ponderomotive energy, whereas in the experiment it is measured to be half of this value.
Journal of the Optical Society of America B: Optical Physics
Optical Society of America
- Atom and Molecular Physics and Optics
- ISSN: 0740-3224