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Impact broadening of Sr 5sns 1 S 0, 5snd 1D2 and 5snd 3 D 2 levels by He and Xe

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

The impact broadening of strontium 5sns 1 S 0, 5snd 1 D 2 and 5snd 3 D 2 levels by He and Xe have been studied by measuring the collisional half-widths of Doppler-free two-photon absorption lines from the 5s 2 1 S 0 ground state in a thermionic diode. Large inelastic contributions to the broadening rates of the levels have been found where the moduli of the quantum defects of different level series are close to each other. A similar but continuousn-mixing behaviour along the series has also been found in our recent investigation on the broadening of Rb levels by noble gases. The broadening rates of the very high levels in Sr were found to be independent on the principal quantum number and the angular momentum of the levels and in good agreement with our recent broadening data of the Rb-He and Rb-Xe systems and the data for Na-He and Na-Xe found by the Columbia group.

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Authors and Affiliations

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

    K. -H. Weber & K. Niemax

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  1. K. -H. Weber
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  2. K. Niemax
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This work was supported by the Deutsche Forschungsgemeinschaft.

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Weber, K.H., Niemax, K. Impact broadening of Sr 5sns 1 S 0, 5snd 1D2 and 5snd 3 D 2 levels by He and Xe. Z Physik A 309, 19–25 (1982). https://doi.org/10.1007/BF01420146

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  • DOI: https://doi.org/10.1007/BF01420146

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