Abstract

A simple method for image subtraction by two-wave mixing in photorefractive cubic Bi12 TiO20 crystals is proposed and demonstrated. Intensity inversion and edge enhancement are also achieved.

© 1991 Optical Society of America

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References

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  1. D. Gabor, G. W. Stroke, R. Restrick, A. Funkhouser, D. Brumm, Phys. Lett. 18, 116 (1965).
    [CrossRef]
  2. A. Delboulbe, C. Fromont, J. P. Herriau, S. Mallick, J. P. Huignard, Appl. Phys. Lett. 55, 713 (1989).
    [CrossRef]
  3. M. Miteva, L. Nikolova, Opt. Commun. 67, 192 (1988).
    [CrossRef]
  4. A. Kamshilin, S. Miridonov, M. Miteva, E. Mokrushina, J. Tech. Phys. 59, 113 (1989) (in Russian).
  5. J. Feinberg, Opt. Lett. 5, 330 (1980).
    [CrossRef] [PubMed]
  6. E. Ochoa, J. W. Goodman, L. Hesselink, Opt. Lett. 10, 430 (1985).
    [CrossRef] [PubMed]

1989

A. Delboulbe, C. Fromont, J. P. Herriau, S. Mallick, J. P. Huignard, Appl. Phys. Lett. 55, 713 (1989).
[CrossRef]

A. Kamshilin, S. Miridonov, M. Miteva, E. Mokrushina, J. Tech. Phys. 59, 113 (1989) (in Russian).

1988

M. Miteva, L. Nikolova, Opt. Commun. 67, 192 (1988).
[CrossRef]

1985

1980

1965

D. Gabor, G. W. Stroke, R. Restrick, A. Funkhouser, D. Brumm, Phys. Lett. 18, 116 (1965).
[CrossRef]

Brumm, D.

D. Gabor, G. W. Stroke, R. Restrick, A. Funkhouser, D. Brumm, Phys. Lett. 18, 116 (1965).
[CrossRef]

Delboulbe, A.

A. Delboulbe, C. Fromont, J. P. Herriau, S. Mallick, J. P. Huignard, Appl. Phys. Lett. 55, 713 (1989).
[CrossRef]

Feinberg, J.

Fromont, C.

A. Delboulbe, C. Fromont, J. P. Herriau, S. Mallick, J. P. Huignard, Appl. Phys. Lett. 55, 713 (1989).
[CrossRef]

Funkhouser, A.

D. Gabor, G. W. Stroke, R. Restrick, A. Funkhouser, D. Brumm, Phys. Lett. 18, 116 (1965).
[CrossRef]

Gabor, D.

D. Gabor, G. W. Stroke, R. Restrick, A. Funkhouser, D. Brumm, Phys. Lett. 18, 116 (1965).
[CrossRef]

Goodman, J. W.

Herriau, J. P.

A. Delboulbe, C. Fromont, J. P. Herriau, S. Mallick, J. P. Huignard, Appl. Phys. Lett. 55, 713 (1989).
[CrossRef]

Hesselink, L.

Huignard, J. P.

A. Delboulbe, C. Fromont, J. P. Herriau, S. Mallick, J. P. Huignard, Appl. Phys. Lett. 55, 713 (1989).
[CrossRef]

Kamshilin, A.

A. Kamshilin, S. Miridonov, M. Miteva, E. Mokrushina, J. Tech. Phys. 59, 113 (1989) (in Russian).

Mallick, S.

A. Delboulbe, C. Fromont, J. P. Herriau, S. Mallick, J. P. Huignard, Appl. Phys. Lett. 55, 713 (1989).
[CrossRef]

Miridonov, S.

A. Kamshilin, S. Miridonov, M. Miteva, E. Mokrushina, J. Tech. Phys. 59, 113 (1989) (in Russian).

Miteva, M.

A. Kamshilin, S. Miridonov, M. Miteva, E. Mokrushina, J. Tech. Phys. 59, 113 (1989) (in Russian).

M. Miteva, L. Nikolova, Opt. Commun. 67, 192 (1988).
[CrossRef]

Mokrushina, E.

A. Kamshilin, S. Miridonov, M. Miteva, E. Mokrushina, J. Tech. Phys. 59, 113 (1989) (in Russian).

Nikolova, L.

M. Miteva, L. Nikolova, Opt. Commun. 67, 192 (1988).
[CrossRef]

Ochoa, E.

Restrick, R.

D. Gabor, G. W. Stroke, R. Restrick, A. Funkhouser, D. Brumm, Phys. Lett. 18, 116 (1965).
[CrossRef]

Stroke, G. W.

D. Gabor, G. W. Stroke, R. Restrick, A. Funkhouser, D. Brumm, Phys. Lett. 18, 116 (1965).
[CrossRef]

Appl. Phys. Lett.

A. Delboulbe, C. Fromont, J. P. Herriau, S. Mallick, J. P. Huignard, Appl. Phys. Lett. 55, 713 (1989).
[CrossRef]

J. Tech. Phys.

A. Kamshilin, S. Miridonov, M. Miteva, E. Mokrushina, J. Tech. Phys. 59, 113 (1989) (in Russian).

Opt. Commun.

M. Miteva, L. Nikolova, Opt. Commun. 67, 192 (1988).
[CrossRef]

Opt. Lett.

Phys. Lett.

D. Gabor, G. W. Stroke, R. Restrick, A. Funkhouser, D. Brumm, Phys. Lett. 18, 116 (1965).
[CrossRef]

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Figures (5)

Fig. 1
Fig. 1

Experimental setup. M’s, mirrors; Sh, shutter; BS, beam splitter.

Fig. 2
Fig. 2

Image subtraction (purely amplitude object): (a) image of transparency T1 reconstructed from the hologram, (b) subtraction of T1 and T2 (T2 is the same transparency displaced by several millimeters).

Fig. 3
Fig. 3

Image subtraction (purely phase object). Transparency T1 is a glass plate, and T2 is the same plate displaced by several millimeters. The bright stripe indicates the difference in the positions of the glass plate during the two exposures.

Fig. 4
Fig. 4

Intensity inversion. The second exposure is made without a transparency (T2 = 1).

Fig. 5
Fig. 5

Edge enhancement, observed for a specific time interval a few seconds after the second exposure starts. (a) is the beginning of the interval, and (b) is the end.

Equations (3)

Equations on this page are rendered with MathJax. Learn more.

E R = A exp ( - i K 1 r ) , E S = B T 1 exp ( - i K 2 r ) .
I = A 2 + B T 1 + A * B T 1 exp ( - i K r ) + c . c . , K = K 2 - K 1 .
Δ n = Δ n 1 + Δ n 2 ~ A * B T 2 - T 1 exp ( - i K r ) .

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