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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 66, Iss. 6 — Jun. 1, 1976
  • pp: 585–589

Isotope shifts in the arc spectra of dysprosium, erbium, and ytterbium

Glenn E. Millerand and John S. Ross  »View Author Affiliations

JOSA, Vol. 66, Issue 6, pp. 585-589 (1976)

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Atomic isotope shifts in the spectra of dysprosium, erbium, and ytterbium have been measured using enriched samples and a Fabry-Perot interferometer. Results include new data on 5 lines in DyI, on 71 lines in ErI, and for 89 lines in YbI. Correlation of electron configurations indicates that for these elements ƒn6s7sn6s6p transitions show an average isotope shift of +28 mK, ƒn-15d6s6pn-15d6s2 exhibit shifts of -86 mK, ƒn5d6s–ƒn-15d6s2 lines have shifts of - 105mK, ƒn-15d26sn6s2 show shifts of -20 mk, while ƒ26s6dn6s6p and ƒn-16p6s2n-15d6s2 transitions exhibit no detectable shifts. Using these isotope shift trends, 17 levels of YbI have been identified as belonging to 4ƒ135d6s6p configurations.

© 1976 Optical Society of America

Glenn E. Millerand and John S. Ross, "Isotope shifts in the arc spectra of dysprosium, erbium, and ytterbium," J. Opt. Soc. Am. 66, 585-589 (1976)

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