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Mapping of vibrational wave-packet motion by femtosecond time-resolved kinetic energy time-of-flight mass spectroscopy

  • A. Assion
  • T. Baumert
  • M. Geisler
  • V. Seyfried
  • G. Gerber

Abstract:

Kinetic energy time-of-flight (KETOF) mass spectroscopy in combination with femtosecond pump-probe and molecular beam techniques is used to map molecular dynamics along an internuclear coordinate. By recording transient KETOF mass spectra we monitor the vibrational wave-packet motion on a neutral electronic state for all possible internuclear distances simultaneously. The power of this method is demonstrated by the one dimensional wave-packet motion on the \(\) double minimum state of the sodium dimer. For comparison with the experiment quantum mechanical simulations were performed.

PACS. 33.80.-b Photon interactions with molecules - 39.30.+w Spectroscopic techniques - 31.70.Hq Time-dependent phenomena: excitation and relaxation processes, and reaction rates - 82.50.Fv Photolysis, photodissociation, and photoionization by infrared, visible, and ultraviolet radiation 

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Copyright information

© EDP Sciences, Springer-Verlag 1998

Authors and Affiliations

  • A. Assion
    • 1
  • T. Baumert
    • 2
  • M. Geisler
    • 1
  • V. Seyfried
    • 1
  • G. Gerber
    • 1
  1. 1.Physikalisches Institut, Universität Würzburg, Am Hubland, 97074 Würzburg, GermanyDE
  2. 2.Deutsches Zentrum für Luft-und Raumfahrt, Oberpfaffenhofen, 82230 Weßling, GermanyDE

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