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Fine structure excitation transfer between the lithiumD-lines by collisions with cesium atoms

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Zeitschrift für Physik D Atoms, Molecules and Clusters

Abstract

Applying resonant Doppler-free 2-photon laser spectroscopy with thermionic diode detection, the cross sections for the excitation energy transfer of the collisional process7Li*(2P 1/2+Cs(6S 1/2)→7Li*(2P 3/2)+Cs(6S 1/2) have been measured. The experimental cross sections, σLi-Cs (1/2→3/2)=890 Å2 and σLi-Cs (3/2→1/2)=430 Å2, are compared with theoretical data obtained by a sudden impact approximation approach taking into account the long-range interaction potentials only. The calculated cross sections show an excitation mixing process at large internuclear distances where Li-Cs dipole-dipole and dipole-quadrupole interaction forces are predominant.

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Authors and Affiliations

  1. Institut für Spektrochemie und Angewandte Spektroskopie (ISAS), Bunsen-Kirchhoff-Strasse 11, W-4600, Dortmund 1, Federal Republic of Germany

    C. Vadla, D. Veza & K. Niemax

  2. Institute of Physics of the University, Bijenicka 46, POB 304, YU-41001, Zagreb, Yugoslavia

    C. Vadla & M. Movre

Authors
  1. C. Vadla
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  2. D. Veza
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  3. M. Movre
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  4. K. Niemax
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Vadla, C., Veza, D., Movre, M. et al. Fine structure excitation transfer between the lithiumD-lines by collisions with cesium atoms. Z Phys D - Atoms, Molecules and Clusters 22, 591–595 (1992). https://doi.org/10.1007/BF01426359

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  • DOI: https://doi.org/10.1007/BF01426359

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