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

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 \textit{et al.}, J. Opt. Soc. Am. B \textbf{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.

11 pages, 3 figures

References in corpus (5)

• Strong-Field Many-Body Physics and the Giant Enhancement in the High-Harmonic Spectrum of Xenon
• Introducing many-body physics using atomic spectroscopy
• Theoretical characterization of the collective resonance states underlying the xenon giant dipole resonance
• Wave-packet propagation based calculation of above-threshold ionization in the x-ray regime
• Nonlinear effects in photoionization over a broad photon-energy range within the TDCIS scheme

Cited by in corpus (4)

• Photoelectron distribution of non-resonant two-photon ionization of neutral atoms
• Effects of core space and excitation levels on ground-state correlation and photoionization dynamics of Be and Ne
• Fluorescence polarization as a precise tool for understanding nonsequential many-photon ionization
• Implementation of gauge-invariant time-dependent configuration interaction singles method for three-dimensional atoms