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The Dieke diagrams like the following could be easily found on the internet:

Dieke diagram

But it is impossible to determine where they get the values initially from; everyone is making cross-references. I'm especially interested in the $\rm Tb^{3+}$ ion.

Please help me to find the original works, I think from very old times, so I will take their experimental values to compare with my experimental data.

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  • $\begingroup$ nist.gov/pml/data/asd.cfm has many spectroscopy results including reference $\endgroup$
    – user26143
    Jul 21, 2014 at 20:23
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    $\begingroup$ Please keep in mind that the precise values depend on the host material (often a crystal). There are specific articles for some materials as pointed out below. $\endgroup$
    – strpeter
    Aug 4, 2017 at 12:01

4 Answers 4

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The Spectra of the Doubly and Triply Ionized Rare Earths

G. H. Dieke and H. M. Crosswhite

Applied Optics Vol. 2, Issue 7, pp. 675-686 (1963) •doi: 10.1364/AO.2.000675

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  • $\begingroup$ Welcome to Physics.SE! I suggest the following: 1) Take the tour! 2) When you see good questions and answers, vote them up by clicking the gray triangles, because the credibility of the system is based on the reputation gained by users sharing their knowledge. 3) If you have a good question, ask it! Just search for duplicates and follow the help center rules. 4) Try to summarize the main points of your link, as links can change and we want our answers to be complete. $\endgroup$
    – auden
    Aug 5, 2016 at 20:50
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    $\begingroup$ @Numrok as the question specifically asks for a reference, and this provides a clear reference (sure there's a link, but the plain text details are also there), this looks like valid answer to me. There's even a DOI, which is about as link-rot resistant as you can get. $\endgroup$
    – Kyle Oman
    Aug 5, 2016 at 22:18
  • $\begingroup$ Actually, I was looking for tabulated version of this diagram..But alas.... $\endgroup$
    – saldenisov
    Aug 16, 2016 at 20:05
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Check out this original document at the link: http://www.osti.gov/scitech/servlets/purl/6417825/

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The numerical values of Nd, Pr, Pm, Sm, Er, Tm, Ho, Dy, Tb and Gd levels are in supplementary tables for W. T. Carnall, G. L. Goodman, K. Rajnak, and R. S. Rana. A systematic analysis of the spectra of the lanthanides doped into single crystal LaF3.

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