Abstract

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 Dy i, on 71 lines in Er i, and for 89 lines in Yb i. Correlation of electron configurations indicates that for these elements fn6s7sfn6s6p transitions show an average isotope shift of +28 mK, fn−15d6s6pfn−15d6s2 exhibit shifts of −86 mK, fn5d6sfn−15d6s2 lines have shifts of −105 mK, fn−15d 26sfn6s2 show shifts of −20 mK, while fn6s6dfn6s6p and fn−16p6s2fn−15d6s2 transitions exhibit no detectable shifts. Using these isotope shift trends, 17 levels of Yb i have been identified as belonging to 4f13 5d6s6p configurations.

© 1976 Optical Society of America

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References

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    [Crossref]
  2. Obtained from the Isotopes Development Center, Oak Ridge National Laboratory.
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    [Crossref]
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    [Crossref]
  12. Th. A. M. van Kleef, Er i energy levels and configurations (private communication, 1975).
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    [Crossref]
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    [Crossref]
  21. Y. Chaiko, Opt. Spectrosk. 20, 424 (1966).
  22. After completion of this paper we have learned that these 4f135d 6s 6).p identifications agree completely with those made independently by Z. B. Goldschmidt utilizing parametric diagonalization of the energy matrices for several interacting configurations. J. L. Tech (private communication, 1975).

1974 (3)

J. F. Wyart, Physica (Utrecht) 75, 371 (1974).
[Crossref]

J. F. Wyart, J. J. A. Koot, and Th. A. M. van Kleef, Physica (Utrecht) 77, 159 (1974).
[Crossref]

J. H. Broadhurst, M. E. Cage, D. L. Clark, G. W. Greenlees, J. A. R. Griffith, and G. R. Isaak, J. Phys. B 7, L513 (1974).
[Crossref]

1973 (1)

Th. A. M. van Kleef and J. J. A. Koot, J. Opt. Soc. Am. 63, 1316 (1973).

1972 (2)

1971 (3)

1970 (1)

1969 (1)

P. Camus and F. S. Tomkins, Phys. (Paris) 30, 545 (1969).
[Crossref]

1966 (2)

W. F. Meggers and C. H. Corliss, J. Res. Nat. Bur. Stand. Sect. A 70, 63 (1966).
[Crossref]

Y. Chaiko, Opt. Spectrosk. 20, 424 (1966).

1965 (1)

A. F. Golovin and A. R. Striganov, Opt. Spectrosk. 19, 467 (1965).

1963 (1)

1956 (1)

K. Krebs and H. Nelkowski, Z. Phys. 145, 543 (1956).
[Crossref]

Behring, W. E.

W. E. Behring, Er i energy levels (private communication, 1973).

Broadhurst, J. H.

J. H. Broadhurst, M. E. Cage, D. L. Clark, G. W. Greenlees, J. A. R. Griffith, and G. R. Isaak, J. Phys. B 7, L513 (1974).
[Crossref]

Cage, M. E.

J. H. Broadhurst, M. E. Cage, D. L. Clark, G. W. Greenlees, J. A. R. Griffith, and G. R. Isaak, J. Phys. B 7, L513 (1974).
[Crossref]

Camus, P.

P. Camus and F. S. Tomkins, Phys. (Paris) 30, 545 (1969).
[Crossref]

Chaiko, Y.

Y. Chaiko, Opt. Spectrosk. 20, 424 (1966).

Clark, D. L.

J. H. Broadhurst, M. E. Cage, D. L. Clark, G. W. Greenlees, J. A. R. Griffith, and G. R. Isaak, J. Phys. B 7, L513 (1974).
[Crossref]

Conway, J. G.

Corliss, C. H.

W. F. Meggers and C. H. Corliss, J. Res. Nat. Bur. Stand. Sect. A 70, 63 (1966).
[Crossref]

Cowan, R. D.

Golovin, A. F.

A. F. Golovin and A. R. Striganov, Opt. Spectrosk. 19, 467 (1965).

Greenlees, G. W.

J. H. Broadhurst, M. E. Cage, D. L. Clark, G. W. Greenlees, J. A. R. Griffith, and G. R. Isaak, J. Phys. B 7, L513 (1974).
[Crossref]

Griffin, D. C.

Griffith, J. A. R.

J. H. Broadhurst, M. E. Cage, D. L. Clark, G. W. Greenlees, J. A. R. Griffith, and G. R. Isaak, J. Phys. B 7, L513 (1974).
[Crossref]

Isaak, G. R.

J. H. Broadhurst, M. E. Cage, D. L. Clark, G. W. Greenlees, J. A. R. Griffith, and G. R. Isaak, J. Phys. B 7, L513 (1974).
[Crossref]

Koot, J. J. A.

J. F. Wyart, J. J. A. Koot, and Th. A. M. van Kleef, Physica (Utrecht) 77, 159 (1974).
[Crossref]

Th. A. M. van Kleef and J. J. A. Koot, J. Opt. Soc. Am. 63, 1316 (1973).

Krebs, K.

K. Krebs and H. Nelkowski, Z. Phys. 145, 543 (1956).
[Crossref]

Marquet, L. C.

L. C. Marquet, thesis, University of California, Berkeley, 1964 (University Microfilms No. 64-9053).

Meggers, W. F.

W. F. Meggers and C. H. Corliss, J. Res. Nat. Bur. Stand. Sect. A 70, 63 (1966).
[Crossref]

W. F. Meggers, unpublished analysis of Yb i energy levels, edited and revised by J. L. Tech and C. E. Moore (private communication, 1974).

Nelkowski, H.

K. Krebs and H. Nelkowski, Z. Phys. 145, 543 (1956).
[Crossref]

Nir, S.

Ross, J. S.

Spector, N.

Striganov, A. R.

A. F. Golovin and A. R. Striganov, Opt. Spectrosk. 19, 467 (1965).

Tech, J. L.

After completion of this paper we have learned that these 4f135d 6s 6).p identifications agree completely with those made independently by Z. B. Goldschmidt utilizing parametric diagonalization of the energy matrices for several interacting configurations. J. L. Tech (private communication, 1975).

Tomkins, F. S.

P. Camus and F. S. Tomkins, Phys. (Paris) 30, 545 (1969).
[Crossref]

van Kleef, Th. A. M.

J. F. Wyart, J. J. A. Koot, and Th. A. M. van Kleef, Physica (Utrecht) 77, 159 (1974).
[Crossref]

Th. A. M. van Kleef and J. J. A. Koot, J. Opt. Soc. Am. 63, 1316 (1973).

Th. A. M. van Kleef, Er i energy levels and configurations (private communication, 1975).

Worden, E. F.

Wyart, J. F.

J. F. Wyart, J. J. A. Koot, and Th. A. M. van Kleef, Physica (Utrecht) 77, 159 (1974).
[Crossref]

J. F. Wyart, Physica (Utrecht) 75, 371 (1974).
[Crossref]

J. F. Wyart, C. R. Acad. Sci. (Paris) Ser. B 273, 763 (1971).

C. R. Acad. Sci. (Paris) Ser. B (1)

J. F. Wyart, C. R. Acad. Sci. (Paris) Ser. B 273, 763 (1971).

J. Opt. Soc. Am. (7)

J. Phys. B (1)

J. H. Broadhurst, M. E. Cage, D. L. Clark, G. W. Greenlees, J. A. R. Griffith, and G. R. Isaak, J. Phys. B 7, L513 (1974).
[Crossref]

J. Res. Nat. Bur. Stand. Sect. A (1)

W. F. Meggers and C. H. Corliss, J. Res. Nat. Bur. Stand. Sect. A 70, 63 (1966).
[Crossref]

Opt. Spectrosk. (2)

A. F. Golovin and A. R. Striganov, Opt. Spectrosk. 19, 467 (1965).

Y. Chaiko, Opt. Spectrosk. 20, 424 (1966).

Phys. (Paris) (1)

P. Camus and F. S. Tomkins, Phys. (Paris) 30, 545 (1969).
[Crossref]

Physica (Utrecht) (2)

J. F. Wyart, J. J. A. Koot, and Th. A. M. van Kleef, Physica (Utrecht) 77, 159 (1974).
[Crossref]

J. F. Wyart, Physica (Utrecht) 75, 371 (1974).
[Crossref]

Z. Phys. (1)

K. Krebs and H. Nelkowski, Z. Phys. 145, 543 (1956).
[Crossref]

Other (6)

Th. A. M. van Kleef, Er i energy levels and configurations (private communication, 1975).

W. F. Meggers, unpublished analysis of Yb i energy levels, edited and revised by J. L. Tech and C. E. Moore (private communication, 1974).

L. C. Marquet, thesis, University of California, Berkeley, 1964 (University Microfilms No. 64-9053).

W. E. Behring, Er i energy levels (private communication, 1973).

Obtained from the Isotopes Development Center, Oak Ridge National Laboratory.

After completion of this paper we have learned that these 4f135d 6s 6).p identifications agree completely with those made independently by Z. B. Goldschmidt utilizing parametric diagonalization of the energy matrices for several interacting configurations. J. L. Tech (private communication, 1975).

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Tables (6)

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TABLE I Isotopic constitution of enriched samples of dysprosium, erbium, and ytterbium, in percent.

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TABLE II Isotope-shift measurements in Dy i.

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TABLE III Isotope-shift measurements in Er i.

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TABLE IV Isotope–shift measurements in Yb I.

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TABLE V Average isotope shifts for different electronic configurations in dysprosium, erbium, and ytterbium.

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TABLE VI 4f135d6s6p configuration assignments in Yb i.