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  • Photoelectron spectroscopy of laser-dressed atomic helium

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    Bartschat456485-Published.pdf (660.6Kb)
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    Version of Record (VoR)
    Author(s)
    Meister, S
    Bondy, A
    Schnorr, K
    Augustin, S
    Lindenblatt, H
    Trost, F
    Xie, X
    Braune, M
    Treusch, R
    Manschwetus, B
    Schirmel, N
    Redlin, H
    Douguet, N
    Bartschat, K
    et al.
    Griffith University Author(s)
    Bartschat, Klaus
    Year published
    2020
    Metadata
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    Abstract
    Photoelectron emission from excited states of laser-dressed atomic helium is analyzed with respect to laser intensity-dependent excitation energy shifts and angular distributions. In the two-color exteme ultraviolet (XUV)-infrared (IR) measurement, the XUV photon energy is scanned between 20.4 eV and the ionization threshold at 24.6 eV, revealing electric dipole-forbidden transitions for a temporally overlapping IR pulse (≈1012Wcm-2). The interpretation of the experimental results is supported by numerically solving the time-dependent Schrödinger equation in a single-active-electron approximation.Photoelectron emission from excited states of laser-dressed atomic helium is analyzed with respect to laser intensity-dependent excitation energy shifts and angular distributions. In the two-color exteme ultraviolet (XUV)-infrared (IR) measurement, the XUV photon energy is scanned between 20.4 eV and the ionization threshold at 24.6 eV, revealing electric dipole-forbidden transitions for a temporally overlapping IR pulse (≈1012Wcm-2). The interpretation of the experimental results is supported by numerically solving the time-dependent Schrödinger equation in a single-active-electron approximation.
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    Journal Title
    Physical Review A
    Volume
    102
    Issue
    6
    DOI
    https://doi.org/10.1103/PhysRevA.102.062809
    Copyright Statement
    © The Author(s) 2020. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Open access publication funded by the Max Planck Society.
    Subject
    Atomic, Molecular, Nuclear, Particle and Plasma Physics
    Publication URI
    http://hdl.handle.net/10072/400620
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    • Journal articles

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