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Precise quantum defects of nS, nP and nD Levels in Cs I

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

Very accurate measurements of then 2 S 1/2 (n=9–30),n 2 P 1/2,3/2 (n=9–50) andn 2 D 3/2, 5/2 (n=5, 8–32) energy levels in Cs I have been performed in the wavelength-range 6,379 Å<λ<7,432 Å with a high-precision vacuum-wavemeter using either Doppler-free two-photon spectroscopy or Doppler-limited one-photon spectroscopy with a frequency-doubling crystal. Thermionic detectors were used throughout the experiments. By fitting the experimental energy values to extended Rydberg-Ritz formulas, accurate quantum defect data and series limits are given. The ionization energyE i =31,406.4710(7) cm−1 was adopted to be the best fit value, differing significantly from most recent evaluations of other authors, but agreeing well with former, less accurate measurements performed in our laboratory.

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Authors and Affiliations

  1. Institut für Experimentalphysik der Universität Kiel, Federal Republic of Germany

    C. -J. Lorenzen & K. Niemax

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  1. C. -J. Lorenzen
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  2. K. Niemax
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Financial support of the Deutsche Forschungsgemeinschaft is gratefully acknowledged.

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Lorenzen, C.J., Niemax, K. Precise quantum defects of nS, nP and nD Levels in Cs I. Z Physik A 315, 127–133 (1984). https://doi.org/10.1007/BF01419370

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  • DOI: https://doi.org/10.1007/BF01419370

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