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Time-dependent configuration-interaction-singles calculation of the 5p-subshell two-photon ionization cross section in xenon

arXiv
Authors: Antonia Karamatskou, Robin Santra

Year

2016

Paper ID

41690

Status

Preprint

Abstract Read

~2 min

Abstract Words

85

Citations

N/A

Abstract

The 5p two-photon ionization cross section of xenon in the photon-energy range below the one-photon ionization threshold is calculated within the time-dependent configuration-interaction-singles (TDCIS) method. The TDCIS calculations are compared to random-phase-approximation (RPA) calculations \[Wendin et al., J. Opt. Soc. Am. B 4, 833 (1987)\] and are found to reproduce the energy positions of the intermediate Rydberg states reasonably well. The effect of interchannel coupling is also investigated and found to change the cross section of the 5p shell only slightly compared to the intrachannel case.

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