Abstract

A novel recording process for the formation of phase volume holograms at up to 1500 cycles/mm is described. The term silver halide (sensitized) gelatin or SHG denotes an all-gelatin phase material, which records the initial image information through photon absorption by the silver halide. Our process uses a reversal bleach that dissolves the developed silver image and cross-links the gelatin molecules in the vicinity of the developed image. Experiments have determined the stored image as refractive-index differences within the remaining gelatin. The major attributes of SHG holograms are (1) panchromatic response, (2) 100:1 greater light sensitivity than dichromate (sensitized) gelatin, and (3) elimination of darkening (printout) effects.

© 1980 Optical Society of America

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References

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    [CrossRef] [PubMed]
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1977 (1)

1972 (1)

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

1971 (2)

K. S. Pennington, J. S. Harper, F. P. Laming, Appl. Phys. Lett. 18, 82 (1971).
[CrossRef]

R. L. Lamberts, C. N. Kurtz, Appl. Opt. 10, 1342 (1971).
[CrossRef] [PubMed]

1970 (2)

1969 (1)

1968 (1)

1967 (1)

1966 (1)

Altman, J. H.

Curran, R. K.

Eastes, J. W.

J. W. Eastes, “Bleaching Methods for Photographically Recorded Holograms,” USAETL Report 156, NTIS AD-A059-548 (Aug.1978), p. 12.

Gladden, J. W.

J. W. Gladden, “Review of Photosensitive Materials for Holographic Recordings,” USAETL Report 128, NTIS AD-A055-013 (Apr.1978), p. 72.

Graver, W. R.

W. R. Graver, Appl. Opt. 16, 1809 (1977).
[CrossRef] [PubMed]

W. R. Graver, “Holographic Optical Elements with Low Q-Fac-tors,” USAETL Report 123, NTIS AD-A047-825 (Oct.1977), p. 28.

Harper, J. S.

K. S. Pennington, J. S. Harper, F. P. Laming, Appl. Phys. Lett. 18, 82 (1971).
[CrossRef]

Kurtz, C. N.

Lamberts, R. L.

Laming, F. P.

K. S. Pennington, J. S. Harper, F. P. Laming, Appl. Phys. Lett. 18, 82 (1971).
[CrossRef]

Lin, L. H.

Meyerhofer, D.

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

Pennington, K. S.

K. S. Pennington, J. S. Harper, F. P. Laming, Appl. Phys. Lett. 18, 82 (1971).
[CrossRef]

Shankoff, T. A.

Smith, H. M.

Vilkomerson, D. H. R.

Appl. Opt. (7)

Appl. Phys. Lett. (1)

K. S. Pennington, J. S. Harper, F. P. Laming, Appl. Phys. Lett. 18, 82 (1971).
[CrossRef]

J. Opt. Soc. Am. (1)

RCA Rev. (1)

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

Other (3)

W. R. Graver, “Holographic Optical Elements with Low Q-Fac-tors,” USAETL Report 123, NTIS AD-A047-825 (Oct.1977), p. 28.

J. W. Eastes, “Bleaching Methods for Photographically Recorded Holograms,” USAETL Report 156, NTIS AD-A059-548 (Aug.1978), p. 12.

J. W. Gladden, “Review of Photosensitive Materials for Holographic Recordings,” USAETL Report 128, NTIS AD-A055-013 (Apr.1978), p. 72.

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Figures (10)

Fig. 1
Fig. 1

Diagram of emulsion cross section for reversal bleach and fix process.

Fig. 2
Fig. 2

Proposed chromium cross-link in gelatin.

Fig. 3
Fig. 3

Optical arrangement for hologram formation.

Fig. 4
Fig. 4

Optical diffractometer.

Fig. 5
Fig. 5

Diffraction efficiency vs exposure for different K values.

Fig. 6
Fig. 6

Diffraction efficiency vs exposure for two spatial frequencies.

Fig. 7
Fig. 7

Angular diffraction sensitivity.

Fig. 8
Fig. 8

Light scattering vs spatial frequency.

Fig. 9
Fig. 9

Diffraction efficiency vs exposure for different pH values.

Fig. 10
Fig. 10

Normalized signal modulation related to K values.

Tables (2)

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TABLE I PROCESSING PROCEDURE

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TABLE II PROCESSING SOLUTIONS

Equations (5)

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6 Ag + Cr 2 O 7 = + 14 H + 6 Ag + + 2 Cr + 3 + 7 H 2 O .
K = | A r * A r | / | A s * A s | = I r / I s .
Ī = I ( x ) 2 I r = 1 2 + 1 2 K + ( 1 K ) 1 / 2 cos β ,
η 1 = sin 2 ( π Δ n / λ f s cos θ 0 ) ,
S = [ ( P s ) / ( P i ) ] ( f s ) 2 .

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