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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1977

1972

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

1971

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

1969

1968

1967

1966

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.

Appl. Phys. Lett.

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

J. Opt. Soc. Am.

RCA Rev.

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

Other

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.

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

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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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