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Selective preparation of ground state wave-packets: a theoretical analysis of femtosecond pump-dump-probe experiments on the potassium dimer

  • Z.W. Shen
  • T. Chen
  • M. Heid
  • W. Kiefer
  • V. Engel

Abstract:

We present simulations on pump-dump-probe experiments performed on the potassium dimer. The interaction of two time-delayed laser pulses prepares vibrational wave packets in the electronic ground state. The quantum calculations reveal to what extent it is possible to prepare a ground state superposition of states with high versus low vibrational quantum numbers by changing the pump-dump delay time. It is shown that transient signals may exhibit interference effects which are due to characteristics of ground state wave-packets composed of two components showing different vibrational dynamics. In this way the signals are able to yield information about vibrational overtone motion.

PACS. 31.70.Hq Time-dependent phenomena: excitation and relaxation processes, and reaction rates – 33.80.Wz Other multiphoton processes 

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Copyright information

© EDP Sciences, Springer-Verlag, Società Italiana di Fisica 2001

Authors and Affiliations

  • Z.W. Shen
    • 1
  • T. Chen
    • 1
  • M. Heid
    • 1
  • W. Kiefer
    • 1
  • V. Engel
    • 1
  1. 1.Institut für Physikalische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, GermanyDE

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