Abstract

A method for the rapid measurement of reflectance, transmittance, and grating efficiencies in the region 1140A to 1190A is described. The method takes advantage of four narrow atmospheric transmission bands and requires no vacuum or dispersing system. The detector is a recently improved thermoluminescent phosphor which is sensitive only to wavelengths below 1340A. Reflectances obtained from samples of various materials are given, and aging and cleaning of aluminum surfaces are studied. The measured efficiencies of four 15 000 lines-per-in. aluminum gratings ranged from 12 to 5 percent.

© 1953 Optical Society of America

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References

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1951 (4)

Johnson, Watanabe, and Tousey, J. Opt. Soc. Am. 41, 702 (1951).
[Crossref]

J. D. Purcell, J. Opt. Soc. Am. 41, 290 (1951).

Tousey, Watanabe, and Purcell, Phys. Rev. 83, 792 (1951); Phys. Rev. 76, 165 (1949).
[Crossref]

K. Watanabe, Phys. Rev. 83, 785 (1951).
[Crossref]

1950 (2)

J. J. Hopfield, Phys. Rev. 77, 560 (1950); Phys. Rev. 20, 587 (1922).
[Crossref]

D. M. Packer and C. Lock, J. Opt. Soc. Am. 40, 264 (1950).

1942 (1)

1939 (1)

1936 (1)

E. G. Schneider, Phys. Rev. 49, 341 (1936).
[Crossref]

1935 (1)

T. Lyman, Phys. Rev. 48, 149 (1935).
[Crossref]

1895 (1)

E. Wiedemann and G. C. Schmidt, Wied. Ann. 54, 604 (1895).

Allen, A. J.

Banning, M.

Franklin, R. G.

Hopfield, J. J.

J. J. Hopfield, Phys. Rev. 77, 560 (1950); Phys. Rev. 20, 587 (1922).
[Crossref]

Johnson,

Lock, C.

D. M. Packer and C. Lock, J. Opt. Soc. Am. 40, 264 (1950).

Lyman, T.

T. Lyman, Phys. Rev. 48, 149 (1935).
[Crossref]

Packer, D. M.

D. M. Packer and C. Lock, J. Opt. Soc. Am. 40, 264 (1950).

Purcell,

Tousey, Watanabe, and Purcell, Phys. Rev. 83, 792 (1951); Phys. Rev. 76, 165 (1949).
[Crossref]

Purcell, J. D.

J. D. Purcell, J. Opt. Soc. Am. 41, 290 (1951).

Schmidt, G. C.

E. Wiedemann and G. C. Schmidt, Wied. Ann. 54, 604 (1895).

Schneider, E. G.

E. G. Schneider, Phys. Rev. 49, 341 (1936).
[Crossref]

Tousey,

Tousey, Watanabe, and Purcell, Phys. Rev. 83, 792 (1951); Phys. Rev. 76, 165 (1949).
[Crossref]

Johnson, Watanabe, and Tousey, J. Opt. Soc. Am. 41, 702 (1951).
[Crossref]

Watanabe,

Johnson, Watanabe, and Tousey, J. Opt. Soc. Am. 41, 702 (1951).
[Crossref]

Tousey, Watanabe, and Purcell, Phys. Rev. 83, 792 (1951); Phys. Rev. 76, 165 (1949).
[Crossref]

Watanabe, K.

K. Watanabe, Phys. Rev. 83, 785 (1951).
[Crossref]

Wiedemann, E.

E. Wiedemann and G. C. Schmidt, Wied. Ann. 54, 604 (1895).

J. Opt. Soc. Am. (5)

Phys. Rev. (5)

E. G. Schneider, Phys. Rev. 49, 341 (1936).
[Crossref]

J. J. Hopfield, Phys. Rev. 77, 560 (1950); Phys. Rev. 20, 587 (1922).
[Crossref]

Tousey, Watanabe, and Purcell, Phys. Rev. 83, 792 (1951); Phys. Rev. 76, 165 (1949).
[Crossref]

K. Watanabe, Phys. Rev. 83, 785 (1951).
[Crossref]

T. Lyman, Phys. Rev. 48, 149 (1935).
[Crossref]

Wied. Ann. (1)

E. Wiedemann and G. C. Schmidt, Wied. Ann. 54, 604 (1895).

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Figures (4)

Fig. 1
Fig. 1

Curve A is the spectral response of the CaSO4:Mn phosphor. Curves B and C are the response curves for the same phosphor with LiF and CaF2 filters. The spikes between 1100A and 1200A indicate the locations and relative importance of the four transmission bands of laboratory air utilized in these experiments.

Fig. 2
Fig. 2

Arrangement for measuring reflectance (1140–1190A).

Fig. 3
Fig. 3

Effect of collodion cleaning on the reflectance of two samples of aluminum in the wavelength range 1140–1190A.

Fig. 4
Fig. 4

Reflectance as a function of angle of incidence for two samples of aluminum and for a polished surface of crystalline quartz.

Tables (3)

Tables Icon

Table I Reflectance of aluminum at 1140–1190A.

Tables Icon

Table II Reflectances at 30° (1140–1190A).

Tables Icon

Table III Grating efficiencies at 1140–1190A.