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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 52, Iss. 4 — Apr. 1, 1962
  • pp: 441–446

Interferometric Measurements of Cesium I

HERBERT KLEIMAN  »View Author Affiliations

JOSA, Vol. 52, Issue 4, pp. 441-446 (1962)

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Sixty-four lines in the arc spectrum of cesium have been measured interferometrically by utilizing several different light sources, to obtain, in general, wavelengths with an uncertainty of ±0.001 A, and energy levels with an uncertainty of ±0.001 cm-1. The energy levels of the individual series have been represented by extended Ritz formulas with a root-mean-square deviation of less than 0.004 cm-1. The value of the series limit derived from these formulas is (31 406.450±0.030) cm-1. Eight terms of the 2F series have been represented by a two-parameter polarization formula with a rms deviation of 0.04 cm-1.

The hyperfine components of the 62S½, 82S½, and 62P½ levels have been resolved. By making use of the theoretically predicted dipole intensity relations, rough values of the splitting factors in the unresolved 2S and 2D states have been obtained which agree with the values predicted on the basis of the Fermi-Segrè-Goudsmit formula. In the forbidden transitions n2D3/2,5/2-62S½, the theoretical quadrupole intensity relations were used to obtain the splitting factors of the n2D3/2,5/2 states. These splitting factors differed markedly from those predicted by the Fermi-Segrè-Goudsmit formula.

HERBERT KLEIMAN, "Interferometric Measurements of Cesium I," J. Opt. Soc. Am. 52, 441-446 (1962)

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