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The 3d states of23Na and7Li: determination of unresolved hyperfine splittings and radiative lifetimes

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Zeitschrift für Physik D Atoms, Molecules and Clusters

Abstract

The electronic transitions from the ground state to the 3d states have been studied for23Na and7Li atoms by two-photon Doppler-free laser spectroscopy. The positions of the resonances are used to determine the unresolved hyperfine structure of the 3d states from which the magnetic-dipole hyperfine interaction constantsA are derived. The results for theA factors are:A(3d 2 D 3/2;23Na)=+527(25) kHz;A(3d 2 D 5/2;23Na)=+108.5(2.4) kHz;A(3d 2 D 3/2;7Li)=+843(41) kHz;A(3d 2 D 5/2;7Li)=+343.6(1.0) kHz. For the fine structure intervals fs of the 3d doublets we obtain: fs(3d Na)=-1 494 444(44) kHz and fs(3d Li)=+1 083 936(60) kHz. The linewidths of the resonances are evaluated with respect to the natural lifetimes of the 3d states. For Na the result is τ(3d Na)=19.27(23) ns.

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Author notes

  1. B. Burghardt

    Present address: Lambda Physik GmbH, Hans-Böckler-Str. 12, D-3400, Göttingen, Federal Republic of Germany

  2. B. Hoffmann

    Present address: Fraunhofer-Institut für zerstörungsfreie Prüfverfahren, Universität, Gebäude 37, D-6600, Saarbrücken 11, Federal Republic of Germany

Authors and Affiliations

  1. Institut für Angewandte Physik, Universität Bonn, Bonn, Federal Republic of Germany

    B. Burghardt & B. Hoffmann

  2. Kernforschungszentrum Karlsruhe, Institut für Kernphysik, Karlsruhe, Federal Republic of Germany

    G. Meisel

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  2. B. Hoffmann
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  3. G. Meisel
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Burghardt, B., Hoffmann, B. & Meisel, G. The 3d states of23Na and7Li: determination of unresolved hyperfine splittings and radiative lifetimes. Z Phys D - Atoms, Molecules and Clusters 8, 109–118 (1988). https://doi.org/10.1007/BF01384502

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