Abstract

We have measured the vacuum wavelength of the 2537-Å line of Hg198 as passed by a Zeeman-split absorption filter. The 6057-Å line of Kr86 was used as a standard. An evacuated Fabry–Perot interferometer was employed with spacers of 218-, 110-, and 21-mm length. The linewidth obtained by using the Zeeman filter is estimated to be about 5 mK. The measured wavelength 2537.26874±0.00003 Å is in excellent agreement with the value obtained by Barger and Kessler for the wavelength emitted by an atomic beam of Hg198.

© 1963 Optical Society of America

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References

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  1. K. G. Kessler and W. G. Schweitzer, J. Opt. Soc. Am. 49, 199 (1959).
    [Crossref]
  2. K. G. Kessler, R. L. Barger, and W. G. Schweitzer, “Mercury Atomic Beams for Metrology,” in Symposium No. 11 Interferometry (Her Majesty’s Stationery Office, London, 1960), p. 67.
  3. Procès-Verbaux Seances Comité Inter-Natl. Poids Mésures 28, 71 (1960).
  4. M. L. Kuder, J. Res. Natl. Bur. Std. (U. S.) 65C, 1 (1961).
  5. K. W. Meissner, J. Opt. Soc. Am. 31, 405 (1941).
    [Crossref]
  6. K. M. Baird and D. S. Smith, J. Opt. Soc. Am. 52, 507 (1962).
    [Crossref]
  7. C. F. Bruce and R. M. Hill, Australian J. Phys. 14, 64 (1961).
    [Crossref]
  8. E. Englehard and J. Terrien, Rev. Opt. 39, 11 (1960).
  9. R. L. Barger and K. G. Kessler, J. Opt. Soc. Am. 51, 827 (1961).
    [Crossref]
  10. W. G. Schweitzer and K. G. Kessler (to be published).

1962 (1)

1961 (3)

C. F. Bruce and R. M. Hill, Australian J. Phys. 14, 64 (1961).
[Crossref]

R. L. Barger and K. G. Kessler, J. Opt. Soc. Am. 51, 827 (1961).
[Crossref]

M. L. Kuder, J. Res. Natl. Bur. Std. (U. S.) 65C, 1 (1961).

1960 (2)

Procès-Verbaux Seances Comité Inter-Natl. Poids Mésures 28, 71 (1960).

E. Englehard and J. Terrien, Rev. Opt. 39, 11 (1960).

1959 (1)

1941 (1)

Baird, K. M.

Barger, R. L.

R. L. Barger and K. G. Kessler, J. Opt. Soc. Am. 51, 827 (1961).
[Crossref]

K. G. Kessler, R. L. Barger, and W. G. Schweitzer, “Mercury Atomic Beams for Metrology,” in Symposium No. 11 Interferometry (Her Majesty’s Stationery Office, London, 1960), p. 67.

Bruce, C. F.

C. F. Bruce and R. M. Hill, Australian J. Phys. 14, 64 (1961).
[Crossref]

Englehard, E.

E. Englehard and J. Terrien, Rev. Opt. 39, 11 (1960).

Hill, R. M.

C. F. Bruce and R. M. Hill, Australian J. Phys. 14, 64 (1961).
[Crossref]

Kessler, K. G.

R. L. Barger and K. G. Kessler, J. Opt. Soc. Am. 51, 827 (1961).
[Crossref]

K. G. Kessler and W. G. Schweitzer, J. Opt. Soc. Am. 49, 199 (1959).
[Crossref]

W. G. Schweitzer and K. G. Kessler (to be published).

K. G. Kessler, R. L. Barger, and W. G. Schweitzer, “Mercury Atomic Beams for Metrology,” in Symposium No. 11 Interferometry (Her Majesty’s Stationery Office, London, 1960), p. 67.

Kuder, M. L.

M. L. Kuder, J. Res. Natl. Bur. Std. (U. S.) 65C, 1 (1961).

Meissner, K. W.

Schweitzer, W. G.

K. G. Kessler and W. G. Schweitzer, J. Opt. Soc. Am. 49, 199 (1959).
[Crossref]

K. G. Kessler, R. L. Barger, and W. G. Schweitzer, “Mercury Atomic Beams for Metrology,” in Symposium No. 11 Interferometry (Her Majesty’s Stationery Office, London, 1960), p. 67.

W. G. Schweitzer and K. G. Kessler (to be published).

Smith, D. S.

Terrien, J.

E. Englehard and J. Terrien, Rev. Opt. 39, 11 (1960).

Australian J. Phys. (1)

C. F. Bruce and R. M. Hill, Australian J. Phys. 14, 64 (1961).
[Crossref]

J. Opt. Soc. Am. (4)

J. Res. Natl. Bur. Std. (U. S.) (1)

M. L. Kuder, J. Res. Natl. Bur. Std. (U. S.) 65C, 1 (1961).

Procès-Verbaux Seances Comité Inter-Natl. Poids Mésures (1)

Procès-Verbaux Seances Comité Inter-Natl. Poids Mésures 28, 71 (1960).

Rev. Opt. (1)

E. Englehard and J. Terrien, Rev. Opt. 39, 11 (1960).

Other (2)

W. G. Schweitzer and K. G. Kessler (to be published).

K. G. Kessler, R. L. Barger, and W. G. Schweitzer, “Mercury Atomic Beams for Metrology,” in Symposium No. 11 Interferometry (Her Majesty’s Stationery Office, London, 1960), p. 67.

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Figures (3)

Fig. 1
Fig. 1

Optical arrangement for measurement of Hg198 Zeeman filter wavelength with krypton standard.

Fig. 2
Fig. 2

Deviations of averages for individual rings from over-all average (2537-Å line, Zeeman filter, and 1-mm resonance cell).

Fig. 3
Fig. 3

Positions of the 199 components relative to the 198 component for the two long spacers. The triangular shape of the 198 line is intended to indicate roughly the width of the 198 fringes—not their shape.

Tables (1)

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Table I Summary of measurements of Hg198 Zeeman-filter wavelength.

Equations (1)

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σ = [ i = 1 n ( λ i - λ av ) 2 / ( n - 1 ) ] 1 2 ,