Probing the spatial structure of a molecular attosecond electron wave packet using shaped recollision trajectories

Hiromichi Niikura, Hans Jakob Wörner, D. M. Villeneuve, P. B. Corkum

    Research output: Contribution to journalArticle

    51 Citations (Scopus)

    Abstract

    Using orthogonally polarized 800 nm and 400 nm laser pulses, we have generated high harmonics in ethane (C2H6). We observe that the intensity of each harmonic order modulates with the attosecond delay between the two laser fields. The modulation period of the low even harmonics is twice that of the period of modulation of the other harmonics. By comparing with theoretical calculation, we show that the double periodicity is a result of the electron wave packet motion in the valence shell of C2H 6 on the attosecond time-scale. Our method is a general approach to measuring internal electron dynamics which does not require molecular alignment, making it applicable to more complex molecules than previous approaches.

    Original languageEnglish
    Article number093004
    JournalPhysical Review Letters
    Volume107
    Issue number9
    DOIs
    Publication statusPublished - 2011 Aug 22

    Fingerprint

    wave packets
    trajectories
    harmonics
    electrons
    modulation
    ethane
    lasers
    periodic variations
    alignment
    valence
    pulses
    molecules

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Probing the spatial structure of a molecular attosecond electron wave packet using shaped recollision trajectories. / Niikura, Hiromichi; Wörner, Hans Jakob; Villeneuve, D. M.; Corkum, P. B.

    In: Physical Review Letters, Vol. 107, No. 9, 093004, 22.08.2011.

    Research output: Contribution to journalArticle

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