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Femtosecond Vibrational Dynamics Of Potassium Dimer

Author

Listed:
  • S. RUTZ

    (Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, 14195 Berlin, Germany)

  • E. SCHREIBER

    (Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, 14195 Berlin, Germany)

  • L. WÖSTE

    (Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, 14195 Berlin, Germany)

Abstract

Combining the femtosecond pump & probe technique with isotope-selective detection, the dynamics of the${}^{39,41} {\rm K}_2 (A)^1 \sum_u^+$state could be investigated. The three-photon-ionization (3PI) signal was recorded over a delay time range of 220 ps. A strong oscillation around the zero-of-time dephases within 10 ps. Fourier analysis of the spectrum yields a group of frequencies settled between 63 and 68 cm−1which can be assigned to the energy spacings in theAstate being excited by a 90-fs laser pulse. The corresponding vibrational periods could be estimated to lie between 499 and 520 fs.

Suggested Citation

  • S. Rutz & E. Schreiber & L. Wöste, 1996. "Femtosecond Vibrational Dynamics Of Potassium Dimer," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 3(01), pages 475-477.
    • Handle: RePEc:wsi:srlxxx:v:03:y:1996:i:01:n:s0218625x96000851
    DOI: 10.1142/S0218625X96000851
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