Abstract
The hyperfine-structure splitting for the 4 and 52 P 1/2 states of sodium was measured using step-wise laser excitation combined with rf-resonance techniques. The magnetic dipole interaction constants were found to be a(42 P 1/2)=30.4(5) MHz and a(52 P 1/2) =13.3(2) MHz. The results are compared with a theoretical calculation, taking polarization effects into account.
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The authors are very grateful to Professor I. Lindgren, Dr. S. Svanberg and FK A-M. Mårtensson for valuable discussions and advice.
This work was financially supported by the Swedish Natural Science Research Council.
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Grundevik, P., Lundberg, H. Measurement of the hyperfine structure splitting for the 4 and 52 P 1/2 states of sodium using radio-frequency spectroscopy. Z Physik A 285, 231–233 (1978). https://doi.org/10.1007/BF01408231
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DOI: https://doi.org/10.1007/BF01408231