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  • Simultaneous real-time tracking of wave packets evolving on two different potential curves in H{sub 2}{sup +} and D{sub 2}{sup +}

    Author(s)
    Alnaser, AS
    Ulrich, B
    Tong, XM
    Litvinyuk, IV
    Maharjan, CM
    Ranitovic, P
    Osipov, T
    Ali, R
    Ghimire, S
    Chang, Z
    Lin, CD
    Cocke, CL
    Griffith University Author(s)
    Litvinyuk, Igor
    Year published
    2005
    Metadata
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    Abstract
    We have used intense few-cycle laser pulses in a pump-probe arrangement to directly map, with high time resolution, the simultaneous evolution on two different potential curves of wave packets created when H{sub 2}{sup +} (D{sub 2}{sup +}) molecules were ionized by a strong laser field. The experimental "snapshots" were obtained by measuring in coincidence the kinetic energy distribution of the proton (deuteron) pairs produced in the Coulomb explosion of the H{sub 2}{sup +} (D{sub 2}{sup +}) molecular ions as a function of the time delay between the pump and the probe pulses. The time resolution was sufficient to reveal not ...
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    We have used intense few-cycle laser pulses in a pump-probe arrangement to directly map, with high time resolution, the simultaneous evolution on two different potential curves of wave packets created when H{sub 2}{sup +} (D{sub 2}{sup +}) molecules were ionized by a strong laser field. The experimental "snapshots" were obtained by measuring in coincidence the kinetic energy distribution of the proton (deuteron) pairs produced in the Coulomb explosion of the H{sub 2}{sup +} (D{sub 2}{sup +}) molecular ions as a function of the time delay between the pump and the probe pulses. The time resolution was sufficient to reveal not only the evolution of the wave packet centroid but also the fundamentally wavelike features of the packets. A full quantum calculation of observed nuclear motion is in good agreement with the measured spectra.
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    Journal Title
    Physical Review A (Atomic, Molecular and Optical Physics)
    Volume
    72
    Issue
    3
    DOI
    https://doi.org/10.1103/PhysRevA.72.030702
    Subject
    Atomic and Molecular Physics
    Mathematical Sciences
    Physical Sciences
    Chemical Sciences
    Publication URI
    http://hdl.handle.net/10072/39385
    Collection
    • Journal articles

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