Year: 2004
Type: article
Abstract: In a recent experiment at the vuv free-electron laser facility at DESY in Hamburg, the generation of multiply charged ions in a gas of atomic xenon was observed. This paper develops a theoretical description of the multiphoton ionization of xenon and its ions. The numerical results lend support to the view that the experimental observation may be interpreted in terms of the nonlinear absorption of several vuv photons. The method rests on the Hartree-Fock-Slater independent-particle model. The multiphoton physics is treated within a Floquet scheme. The continuum problem of the photoelectron is solved using a complex absorbing potential. Rate equations for the ionic populations are integrated to take into account the temporal structure of the individual vuv laser pulses. The effect of the spatial profile of the free-electron laser beam on the distribution of xenon charge states is included. An Auger-type many-electron mechanism may play a role in the vuv multiphoton ionization of xenon ions.
Source: Physical Review A
Authors: Robin Santra, Chris H. Greene
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G2392090027, G4446804001, 深海古細菌の細胞表層：特異な糖タンパク質の鎧で達成される超高温・高圧環境への適応, Molecular basis of microbial symbiosis: systematic elucidation of glycan-mediated interactions between organisms in the deep-sea, Symbiosis in deep-sea hydrothermal fields: using glycomics to better understand host-symbiont interactions.
OpenAlex ID: W2067256819