Abstract

A simple method of photoelectrically scanning a Fabry-Perot interferometer pattern is described. Scanning is accomplished by parallel displacement of the incident beam of light across the face of an interferometer whose plate separation varies in the direction of the displacement. This method of scanning allows a slightly distorted plot of the line profile to be continuously displayed on an oscilloscope.

© 1961 Optical Society of America

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References

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  1. M. A. Biondi, Rev. Sci. Instr. 27, 36 (1956).
    [Crossref]
  2. J. H. Jaffe, D. H. Rank, and T. A. Wiggins, J. Opt. Soc. Am. 45, 636 (1955).
    [Crossref]
  3. C. Dufour and P. Jacquinot, J. recherches centre nat. recherche sci., Labs. Bellevue (Paris) 6, 91 (1948).
  4. For a comparison of the optical speeds of the several types of spectrometers when used with photoelectric detection, see P. Jacquinot, J. Opt. Soc. Am. 44, 761 (1954).
    [Crossref]
  5. The wedge angle is given by the ratio of half a wavelength to the diameter of the plate. Because this is a very small angle the Airy summation is valid, and the fringes are essentially localized at infinity.
  6. Note that when used with a monochromator instead of filters, the entrance aperture will be determined by the exit slit of the monochromator. Then δn, and hence δλ, can be very small.
  7. D. H. Rank and J. M. Bennett, J. Opt. Soc. Am. 45, 46 (1955).
    [Crossref]
  8. Andrew L. Gardner, William L. Barr, Daune M. Gall, Laurence S. Hall, Raymond L. Kelly, and Norman L. Oleson, UCRL-5904 (unpublished).

1956 (1)

M. A. Biondi, Rev. Sci. Instr. 27, 36 (1956).
[Crossref]

1955 (2)

1954 (1)

1948 (1)

C. Dufour and P. Jacquinot, J. recherches centre nat. recherche sci., Labs. Bellevue (Paris) 6, 91 (1948).

Barr, William L.

Andrew L. Gardner, William L. Barr, Daune M. Gall, Laurence S. Hall, Raymond L. Kelly, and Norman L. Oleson, UCRL-5904 (unpublished).

Bennett, J. M.

Biondi, M. A.

M. A. Biondi, Rev. Sci. Instr. 27, 36 (1956).
[Crossref]

Dufour, C.

C. Dufour and P. Jacquinot, J. recherches centre nat. recherche sci., Labs. Bellevue (Paris) 6, 91 (1948).

Gall, Daune M.

Andrew L. Gardner, William L. Barr, Daune M. Gall, Laurence S. Hall, Raymond L. Kelly, and Norman L. Oleson, UCRL-5904 (unpublished).

Gardner, Andrew L.

Andrew L. Gardner, William L. Barr, Daune M. Gall, Laurence S. Hall, Raymond L. Kelly, and Norman L. Oleson, UCRL-5904 (unpublished).

Hall, Laurence S.

Andrew L. Gardner, William L. Barr, Daune M. Gall, Laurence S. Hall, Raymond L. Kelly, and Norman L. Oleson, UCRL-5904 (unpublished).

Jacquinot, P.

Jaffe, J. H.

Kelly, Raymond L.

Andrew L. Gardner, William L. Barr, Daune M. Gall, Laurence S. Hall, Raymond L. Kelly, and Norman L. Oleson, UCRL-5904 (unpublished).

Oleson, Norman L.

Andrew L. Gardner, William L. Barr, Daune M. Gall, Laurence S. Hall, Raymond L. Kelly, and Norman L. Oleson, UCRL-5904 (unpublished).

Rank, D. H.

Wiggins, T. A.

J. Opt. Soc. Am. (3)

J. recherches centre nat. recherche sci., Labs. Bellevue (Paris) (1)

C. Dufour and P. Jacquinot, J. recherches centre nat. recherche sci., Labs. Bellevue (Paris) 6, 91 (1948).

Rev. Sci. Instr. (1)

M. A. Biondi, Rev. Sci. Instr. 27, 36 (1956).
[Crossref]

Other (3)

Andrew L. Gardner, William L. Barr, Daune M. Gall, Laurence S. Hall, Raymond L. Kelly, and Norman L. Oleson, UCRL-5904 (unpublished).

The wedge angle is given by the ratio of half a wavelength to the diameter of the plate. Because this is a very small angle the Airy summation is valid, and the fringes are essentially localized at infinity.

Note that when used with a monochromator instead of filters, the entrance aperture will be determined by the exit slit of the monochromator. Then δn, and hence δλ, can be very small.

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Figures (3)

Fig. 1
Fig. 1

Illustration showing how the wedge-shaped Fabry-Perot interferometer is scanned.

Fig. 2
Fig. 2

Schematic diagram of the scanning interferometer, showing the important details.

Fig. 3
Fig. 3

Oscillograms taken with the scanning interferometer.

Equations (3)

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n = 2 t μ / λ ,
δ n / n = δ λ / λ .
R < f ( 2 δ λ / λ ) 1 2 ,