Abstract

Efficiencies have been measured for two platinum-coated original concave gratings, four platinized replicas from the originals, and two original concave gratings ruled in gold. The measurements were made at near normal incidence in the 500- to 1400-Å wavelength region. Coated gratings have been compared with uncoated gratings and platinized mirrors. The measurements emphasize the importance of the quality of the individual rulings in addition to the type of coating, in the ultimate determination of the distribution of grating efficiency with wavelength.

© 1963 Optical Society of America

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References

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  1. R. S. Crisp, Opt. Acta 8, 137 (1961).
    [Crossref]
  2. J. A. R. Samson, J. Opt. Soc. Am. 52, 525 (1962).
    [Crossref]
  3. P. H. Berning, G. Hass, and R. P. Madden, J. Opt. Soc. Am. 50, 586 (1960).
    [Crossref]
  4. G. Hass, W. R. Hunter, and R. Tousey, J. Opt. Soc. Am. 47, 1070 (1957).
    [Crossref]
  5. G. Hass and R. Tousey, J. Opt. Soc. Am. 49, 593 (1959).
    [Crossref]
  6. R. P. Madden and L. R. Canfield, J. Opt. Soc. Am. 51, 838 (1961).
    [Crossref]
  7. L. Goldberg, Mém. Soc. Roy. Sci. Liège 5th Ser.,  4, 30 (1961).
  8. H. Broida (private communication, 1962).
  9. W. Liller, Space Astrophysics (McGraw-Hill Book Company, Inc., New York, 1961).
  10. D. Richardson (private communication, 1962).

1962 (1)

1961 (3)

R. S. Crisp, Opt. Acta 8, 137 (1961).
[Crossref]

R. P. Madden and L. R. Canfield, J. Opt. Soc. Am. 51, 838 (1961).
[Crossref]

L. Goldberg, Mém. Soc. Roy. Sci. Liège 5th Ser.,  4, 30 (1961).

1960 (1)

1959 (1)

1957 (1)

J. Opt. Soc. Am. (5)

Mém. Soc. Roy. Sci. Liège 5th Ser. (1)

L. Goldberg, Mém. Soc. Roy. Sci. Liège 5th Ser.,  4, 30 (1961).

Opt. Acta (1)

R. S. Crisp, Opt. Acta 8, 137 (1961).
[Crossref]

Other (3)

H. Broida (private communication, 1962).

W. Liller, Space Astrophysics (McGraw-Hill Book Company, Inc., New York, 1961).

D. Richardson (private communication, 1962).

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Figures (5)

Fig. 1
Fig. 1

Schematic diagram of the optical test system.

Fig. 2
Fig. 2

Efficiencies of platinized mirrors at near normal incidence. Curve I: single-coating evaporation at Ft. Belvoir. Curve II: platinum coated in two successive operations. Curve III: platinum coated in nine successive operations.

Fig. 3
Fig. 3

Efficiencies of platinized gratings. Curve I: uncoated Bausch & Lomb replica #2274-3-11. Curve II: platinized replica #2274-3-11 of Curve I. Curve III: platinized replica #2274-3-4 from the same master. All platinizing by Bausch & Lomb.

Fig. 4
Fig. 4

Efficiencies of platinized original and replica gratings. Curve I: original grating #2294 (solid circles) and the first replica #2294-1-1 (crosses). Both gratings platinized at Ft. Belvoir. Curve II: second replica grating #2294-2-2 (open circles) platinized by Bausch & Lomb.

Fig. 5
Fig. 5

Efficiencies of gold gratings. Curve I: original grating #2292 (crosses) ruled in gold. Curve II: original grating #2295 ruled in gold. Curve III: original grating #2295 ruled in gold and platinized at Ft. Belvoir (crosses and solid circles are measurements on the blaze side and the nonblazed side, respectively.)