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  • Above-threshold ionization in neon produced by combining optical and bichromatic XUV femtosecond laser pulses

    Author(s)
    Douguet, Nicolas
    Grum-Grzhimailo, Alexei N
    Bartschat, Klaus
    Griffith University Author(s)
    Bartschat, Klaus
    Year published
    2017
    Metadata
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    Abstract
    We consider the ionization of neon induced by a femtosecond laser pulse composed of overlapping, linearly polarized bichromatic extreme ultraviolet and infrared fields. In particular, we study the effects of infrared light on a two-pathway ionization scheme for which Ne 2s22p53sP1 is used as the intermediate state. Using time-dependent calculations, supported by a theoretical approach based on the strong-field approximation, we analyze the ionization probability and the photoelectron angular distributions associated with the different sidebands of the ionization spectrum. Complex oscillations of the angular distribution ...
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    We consider the ionization of neon induced by a femtosecond laser pulse composed of overlapping, linearly polarized bichromatic extreme ultraviolet and infrared fields. In particular, we study the effects of infrared light on a two-pathway ionization scheme for which Ne 2s22p53sP1 is used as the intermediate state. Using time-dependent calculations, supported by a theoretical approach based on the strong-field approximation, we analyze the ionization probability and the photoelectron angular distributions associated with the different sidebands of the ionization spectrum. Complex oscillations of the angular distribution anisotropy parameters as a function of the infrared light intensity are revealed. Finally, we demonstrate that coherent control of the asymmetry is achievable by tuning the infrared frequency to a nearby electronic transition.
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    Journal Title
    Physical Review A
    Volume
    95
    Issue
    1
    DOI
    https://doi.org/10.1103/PhysRevA.95.013407
    Subject
    Physical sciences
    Science & Technology
    Physical Sciences
    Optics
    Physics, Atomic, Molecular & Chemical
    Physics
    Publication URI
    http://hdl.handle.net/10072/409273
    Collection
    • Journal articles

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