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  • Attosecond Electron Spectroscopy Using a Novel Interferometric Pump-Probe Technique

    Author(s)
    Mauritsson, J.
    Remetter, T.
    Swoboda, M.
    Klunder, K.
    L'Huiller, A.
    Schafer, K.
    Ghafur, O.
    Kelkensberg, F
    Siu, W.
    Johnsson, P.
    J Vrakking, M.
    Znakovskaya, I.
    Uphues, T.
    Zherebtsov, S.
    Kling, M.
    Lépine, F.
    Benedetti, E.
    Ferrari, F.
    Sansone, G.
    Nisoli, M.
    Griffith University Author(s)
    Ghafur, Omair
    Year published
    2010
    Metadata
    Show full item record
    Abstract
    We present an interferometric pump-probe technique for the characterization of attosecond electron wave packets (WPs) that uses a free WP as a reference to measure a bound WP. We demonstrate our method by exciting helium atoms using an attosecond pulse (AP) with a bandwidth centered near the ionization threshold, thus creating both a bound and a free WP simultaneously. After a variable delay, the bound WP is ionized by a few-cycle infrared laser precisely synchronized to the original AP. By measuring the delay-dependent photoelectron spectrum we obtain an interferogram that contains both quantum beats as well as multipath ...
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    We present an interferometric pump-probe technique for the characterization of attosecond electron wave packets (WPs) that uses a free WP as a reference to measure a bound WP. We demonstrate our method by exciting helium atoms using an attosecond pulse (AP) with a bandwidth centered near the ionization threshold, thus creating both a bound and a free WP simultaneously. After a variable delay, the bound WP is ionized by a few-cycle infrared laser precisely synchronized to the original AP. By measuring the delay-dependent photoelectron spectrum we obtain an interferogram that contains both quantum beats as well as multipath interference. Analysis of the interferogram allows us to determine the bound WP components with a spectral resolution much better than the inverse of the AP duration.
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    Journal Title
    Physical Review Letters
    Volume
    105
    Issue
    5
    DOI
    https://doi.org/10.1103/PhysRevLett.105.053001
    Subject
    Atomic and Molecular Physics
    Mathematical Sciences
    Physical Sciences
    Engineering
    Publication URI
    http://hdl.handle.net/10072/42756
    Collection
    • Journal articles

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