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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 60, Iss. 4 — Apr. 1, 1970
  • pp: 454–466

Spectrum of Doubly Ionized Thulium (Tm III)

JACK SUGAR  »View Author Affiliations

JOSA, Vol. 60, Issue 4, pp. 454-466 (1970)

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A list of 848 low-excitation spectral lines of Tm III has been obtained by utilizing the sliding-spark light source at a peak current of 6 A. An analysis of these lines yielded 108 energy levels belonging to the configurations 4ƒ13, 4ƒ125d, 4ƒ126s, and 4ƒ126p. The classified lines and level values are presented as well as a theoretical interpretation of these configurations.

JACK SUGAR, "Spectrum of Doubly Ionized Thulium (Tm III)," J. Opt. Soc. Am. 60, 454-466 (1970)

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