Optimal control of photoelectron emission by realistic waveforms

J. Solanpää, M. F. Ciappina, E. Räsänen

    Tutkimustuotos: ArtikkeliScientificvertaisarvioitu

    1 Sitaatiot (Scopus)
    28 Lataukset (Pure)

    Abstrakti

    Recent experimental techniques in multicolor waveform synthesis allow the temporal shaping of strong femtosecond laser pulses with applications in the control of quantum mechanical processes in atoms, molecules, and nanostructures. Prediction of the shapes of the optimal waveforms can be done computationally using quantum optimal control theory. In this work we demonstrate the control of above-threshold photoemission of one-dimensional hydrogen model with pulses feasible for experimental waveform synthesis. By mixing different spectral channels and thus lowering the intensity requirements for individual channels, the resulting optimal pulses can extend the cutoff energies by at least up to 50% and bring up the electron yield by several orders of magnitude. Insights into the electron dynamics for optimized photoelectron emission are obtained with a semiclassical two-step model.

    AlkuperäiskieliEnglanti
    Sivut1784-1792
    Sivumäärä9
    JulkaisuJournal of Modern Optics
    Vuosikerta64
    Numero17
    DOI - pysyväislinkit
    TilaJulkaistu - 2017
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

    Julkaisufoorumi-taso

    • Jufo-taso 1

    !!ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

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