| DOI | Resolve DOI: https://doi.org/10.1088/0953-4075/40/5/F03 |
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| Author | Search for: Yudin, G. L.1; Search for: Patchkovskii, S.1; Search for: Corkum, P. B.1; Search for: Bandrauk, A. D. |
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| Name affiliation | - National Research Council of Canada
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| Format | Text, Article |
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| Subject | Continuum mechanics; Coulomb interactions; Parameter estimation; Photoelectrons; Quantum theory; Wave functions; X rays; Coulomb-Volkov continuum; Photoelectron interferences; Temporal separation; Volkov continuum solutions; X-ray parameters; Electromagnetic wave interference |
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| Abstract | We develop a description of laser-assisted x-ray photoionization based on a sudden approximation approach. By splitting the system evolution into three time stages we find necessary and sufficient conditions for spatial and temporal separation of Coulomb and Volkov continuum solutions. Using the separable Coulomb-Volkov wavefunction we present an analytical non-relativistic quantum theory of attosecond photoionization. It applies for arbitrary x-ray parameters, with both Coulomb continuum and laser field treated non-perturbatively. The theory provides a firm basis for characterizing photoelectron phase and atomic and molecular wavefunctions, by extracting them from experimental data. Using the molecular hydrogen ion as a test case, we display a variety of photoelectron interference sources in energy- and angular-resolved spectra for different pulse durations, chirps and delay times between x-ray pulse replicas. |
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| Publication date | 2007 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21276170 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 4711111e-7deb-4b5b-84eb-38a3234cf7ef |
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| Record created | 2015-09-28 |
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| Record modified | 2020-05-10 |
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