Abstract

The spectral sensitization of hardened dichromated gelatin to red light is carried out using methylene blue as sensitizer. The sensitized dichromated gelatin plate can be stored for over 1 month in an ammonia atmosphere without loss of photosensitivity. Holograms recorded in the sensitized dichromated gelatin using a He–Ne laser have high diffraction efficiency and low noise if they are swelled at a temperature near the gelatin gel melting point during development processing. Maximum diffraction efficiency has been found to be as high as 88%. The energy required to obtain 80% diffraction efficiency is 150–400 mJ/cm2.

© 1976 Optical Society of America

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References

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  1. T. A. Shankoff, Appl. Opt. 7, 2101 (1968).
    [CrossRef] [PubMed]
  2. A. Graube, Opt. Commun. 8, 251 (1973).
    [CrossRef]
  3. M. Akagi, Photogr. Sci. Eng. 18, 248 (1974).
  4. D. Meyerhofer, RCA Rev. 33, 110 (1972).
  5. M. Sasaki, K. Honda, in 1973 SPSE Tokyo Symposium on Imaging Materials and Systems, preprint A-6 (1973).
  6. Manufactured by Konishiroku Photo Industry Co., Ltd., equivalent for Kodak Photo-Flow.
  7. See, for example, R. G. Brandes, E. E. Francois, T. A. Shankoff, Appl. Opt. 8, 2346 (1969).
    [CrossRef] [PubMed]
  8. L. H. Lin, Appl. Opt. 8, 963 (1969).
    [CrossRef] [PubMed]
  9. H. Kogelnik, in Proc. Symp. Modern Optics (Polytechnic Press, Brooklyn, 1967), pp. 605–617.
  10. R. K. Curran, T. A. Shankoff, Appl. Opt. 9, 1651 (1970).
    [CrossRef] [PubMed]

1974 (1)

M. Akagi, Photogr. Sci. Eng. 18, 248 (1974).

1973 (1)

A. Graube, Opt. Commun. 8, 251 (1973).
[CrossRef]

1972 (1)

D. Meyerhofer, RCA Rev. 33, 110 (1972).

1970 (1)

1969 (2)

1968 (1)

Akagi, M.

M. Akagi, Photogr. Sci. Eng. 18, 248 (1974).

Brandes, R. G.

Curran, R. K.

Francois, E. E.

Graube, A.

A. Graube, Opt. Commun. 8, 251 (1973).
[CrossRef]

Honda, K.

M. Sasaki, K. Honda, in 1973 SPSE Tokyo Symposium on Imaging Materials and Systems, preprint A-6 (1973).

Kogelnik, H.

H. Kogelnik, in Proc. Symp. Modern Optics (Polytechnic Press, Brooklyn, 1967), pp. 605–617.

Lin, L. H.

Meyerhofer, D.

D. Meyerhofer, RCA Rev. 33, 110 (1972).

Sasaki, M.

M. Sasaki, K. Honda, in 1973 SPSE Tokyo Symposium on Imaging Materials and Systems, preprint A-6 (1973).

Shankoff, T. A.

Appl. Opt. (4)

Opt. Commun. (1)

A. Graube, Opt. Commun. 8, 251 (1973).
[CrossRef]

Photogr. Sci. Eng. (1)

M. Akagi, Photogr. Sci. Eng. 18, 248 (1974).

RCA Rev. (1)

D. Meyerhofer, RCA Rev. 33, 110 (1972).

Other (3)

M. Sasaki, K. Honda, in 1973 SPSE Tokyo Symposium on Imaging Materials and Systems, preprint A-6 (1973).

Manufactured by Konishiroku Photo Industry Co., Ltd., equivalent for Kodak Photo-Flow.

H. Kogelnik, in Proc. Symp. Modern Optics (Polytechnic Press, Brooklyn, 1967), pp. 605–617.

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Figures (3)

Fig. 1
Fig. 1

Absorption spectrum of the MB sensitized DCG plate.

Fig. 2
Fig. 2

Diffraction efficiency of a holographic grating with spatial frequencies of 1050 lines/mm and thickness of 20 μm.

Fig. 3
Fig. 3

Photomicrograph of a view of the end-on cross section of a 20-μm thick holographic grating having a 1-μm grating spacing.

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