Abstract

We have implemented a phase-only optical encryption and decryption system with a readout based on the generalized phase-contrast method. The experimental system has been implemented with liquid-crystal spatial light modulators to generate binary phase-encrypted masks and a decrypting key. A phase-contrast filter is used to display the phase information.

© 2000 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. B. Javidi, Phys. Today 50(3), 27 (1997).
    [CrossRef]
  2. B. Javidi and J. L. Horner, Opt. Eng. 33, 1752 (1994).
    [CrossRef]
  3. P. Réfrégier and B. Javidi, Opt. Lett. 20, 767 (1995).
    [CrossRef]
  4. N. Towghi, B. Javidi, and Z. Lou, J. Opt. Soc. Am. A 16, 1915 (1999).
    [CrossRef]
  5. J. W. Han, C. S. Park, D. H. Ryu, and E. S. Kim, Opt. Eng. 38, 47 (1999).
    [CrossRef]
  6. E. G. Johnson, J. D. Brasher, D. Gregory, P. Erbach, M. Duignan, G. Behrman, S. H. Lee, W. Dashner, and P. Long, Opt. Eng. 37, 18 (1998).
    [CrossRef]
  7. S. Lai, Opt. Eng. 35, 2470 (1996).
    [CrossRef]
  8. J. Glückstad, “An optical encryption and decryption method and system,” international patent application PCT/DK99/0031 (July3, 1998).
  9. J. Glückstad, Proc. SPIE 3715, 152 (1999).
    [CrossRef]
  10. J. Glückstad, Opt. Commun. 130, 225 (1996).
    [CrossRef]
  11. J. Glückstad, L. Lading, H. Toyoda, and T. Hara, Opt. Lett. 22, 1373 (1997).
    [CrossRef]
  12. J. Glückstad, Opt. Commun. 147, 16 (1998).
    [CrossRef]
  13. J. Glückstad, Appl. Opt. 37, 8151 (1998).
    [CrossRef]
  14. F. Zernike, Science 121, 345 (1955).
    [CrossRef] [PubMed]
  15. N. Mukohzaka, N. Yoshida, H. Toyoda, Y. Kobayashi, and T. Hara, Appl. Opt. 33, 2804 (1994).
    [CrossRef] [PubMed]
  16. Y. Igasaki, F. Li, N. Yoshida, H. Toyoda, T. Inoue, N. Mukohzaka, Y. Kobayashi, and T. Hara, Opt. Rev. 6, 339 (1999).
    [CrossRef]

1999 (4)

N. Towghi, B. Javidi, and Z. Lou, J. Opt. Soc. Am. A 16, 1915 (1999).
[CrossRef]

J. W. Han, C. S. Park, D. H. Ryu, and E. S. Kim, Opt. Eng. 38, 47 (1999).
[CrossRef]

J. Glückstad, Proc. SPIE 3715, 152 (1999).
[CrossRef]

Y. Igasaki, F. Li, N. Yoshida, H. Toyoda, T. Inoue, N. Mukohzaka, Y. Kobayashi, and T. Hara, Opt. Rev. 6, 339 (1999).
[CrossRef]

1998 (3)

J. Glückstad, Opt. Commun. 147, 16 (1998).
[CrossRef]

J. Glückstad, Appl. Opt. 37, 8151 (1998).
[CrossRef]

E. G. Johnson, J. D. Brasher, D. Gregory, P. Erbach, M. Duignan, G. Behrman, S. H. Lee, W. Dashner, and P. Long, Opt. Eng. 37, 18 (1998).
[CrossRef]

1997 (2)

1996 (2)

J. Glückstad, Opt. Commun. 130, 225 (1996).
[CrossRef]

S. Lai, Opt. Eng. 35, 2470 (1996).
[CrossRef]

1995 (1)

1994 (2)

1955 (1)

F. Zernike, Science 121, 345 (1955).
[CrossRef] [PubMed]

Behrman, G.

E. G. Johnson, J. D. Brasher, D. Gregory, P. Erbach, M. Duignan, G. Behrman, S. H. Lee, W. Dashner, and P. Long, Opt. Eng. 37, 18 (1998).
[CrossRef]

Brasher, J. D.

E. G. Johnson, J. D. Brasher, D. Gregory, P. Erbach, M. Duignan, G. Behrman, S. H. Lee, W. Dashner, and P. Long, Opt. Eng. 37, 18 (1998).
[CrossRef]

Dashner, W.

E. G. Johnson, J. D. Brasher, D. Gregory, P. Erbach, M. Duignan, G. Behrman, S. H. Lee, W. Dashner, and P. Long, Opt. Eng. 37, 18 (1998).
[CrossRef]

Duignan, M.

E. G. Johnson, J. D. Brasher, D. Gregory, P. Erbach, M. Duignan, G. Behrman, S. H. Lee, W. Dashner, and P. Long, Opt. Eng. 37, 18 (1998).
[CrossRef]

Erbach, P.

E. G. Johnson, J. D. Brasher, D. Gregory, P. Erbach, M. Duignan, G. Behrman, S. H. Lee, W. Dashner, and P. Long, Opt. Eng. 37, 18 (1998).
[CrossRef]

Glückstad, J.

J. Glückstad, Proc. SPIE 3715, 152 (1999).
[CrossRef]

J. Glückstad, Opt. Commun. 147, 16 (1998).
[CrossRef]

J. Glückstad, Appl. Opt. 37, 8151 (1998).
[CrossRef]

J. Glückstad, L. Lading, H. Toyoda, and T. Hara, Opt. Lett. 22, 1373 (1997).
[CrossRef]

J. Glückstad, Opt. Commun. 130, 225 (1996).
[CrossRef]

J. Glückstad, “An optical encryption and decryption method and system,” international patent application PCT/DK99/0031 (July3, 1998).

Gregory, D.

E. G. Johnson, J. D. Brasher, D. Gregory, P. Erbach, M. Duignan, G. Behrman, S. H. Lee, W. Dashner, and P. Long, Opt. Eng. 37, 18 (1998).
[CrossRef]

Han, J. W.

J. W. Han, C. S. Park, D. H. Ryu, and E. S. Kim, Opt. Eng. 38, 47 (1999).
[CrossRef]

Hara, T.

Horner, J. L.

B. Javidi and J. L. Horner, Opt. Eng. 33, 1752 (1994).
[CrossRef]

Igasaki, Y.

Y. Igasaki, F. Li, N. Yoshida, H. Toyoda, T. Inoue, N. Mukohzaka, Y. Kobayashi, and T. Hara, Opt. Rev. 6, 339 (1999).
[CrossRef]

Inoue, T.

Y. Igasaki, F. Li, N. Yoshida, H. Toyoda, T. Inoue, N. Mukohzaka, Y. Kobayashi, and T. Hara, Opt. Rev. 6, 339 (1999).
[CrossRef]

Javidi, B.

Johnson, E. G.

E. G. Johnson, J. D. Brasher, D. Gregory, P. Erbach, M. Duignan, G. Behrman, S. H. Lee, W. Dashner, and P. Long, Opt. Eng. 37, 18 (1998).
[CrossRef]

Kim, E. S.

J. W. Han, C. S. Park, D. H. Ryu, and E. S. Kim, Opt. Eng. 38, 47 (1999).
[CrossRef]

Kobayashi, Y.

Y. Igasaki, F. Li, N. Yoshida, H. Toyoda, T. Inoue, N. Mukohzaka, Y. Kobayashi, and T. Hara, Opt. Rev. 6, 339 (1999).
[CrossRef]

N. Mukohzaka, N. Yoshida, H. Toyoda, Y. Kobayashi, and T. Hara, Appl. Opt. 33, 2804 (1994).
[CrossRef] [PubMed]

Lading, L.

Lai, S.

S. Lai, Opt. Eng. 35, 2470 (1996).
[CrossRef]

Lee, S. H.

E. G. Johnson, J. D. Brasher, D. Gregory, P. Erbach, M. Duignan, G. Behrman, S. H. Lee, W. Dashner, and P. Long, Opt. Eng. 37, 18 (1998).
[CrossRef]

Li, F.

Y. Igasaki, F. Li, N. Yoshida, H. Toyoda, T. Inoue, N. Mukohzaka, Y. Kobayashi, and T. Hara, Opt. Rev. 6, 339 (1999).
[CrossRef]

Long, P.

E. G. Johnson, J. D. Brasher, D. Gregory, P. Erbach, M. Duignan, G. Behrman, S. H. Lee, W. Dashner, and P. Long, Opt. Eng. 37, 18 (1998).
[CrossRef]

Lou, Z.

Mukohzaka, N.

Y. Igasaki, F. Li, N. Yoshida, H. Toyoda, T. Inoue, N. Mukohzaka, Y. Kobayashi, and T. Hara, Opt. Rev. 6, 339 (1999).
[CrossRef]

N. Mukohzaka, N. Yoshida, H. Toyoda, Y. Kobayashi, and T. Hara, Appl. Opt. 33, 2804 (1994).
[CrossRef] [PubMed]

Park, C. S.

J. W. Han, C. S. Park, D. H. Ryu, and E. S. Kim, Opt. Eng. 38, 47 (1999).
[CrossRef]

Réfrégier, P.

Ryu, D. H.

J. W. Han, C. S. Park, D. H. Ryu, and E. S. Kim, Opt. Eng. 38, 47 (1999).
[CrossRef]

Towghi, N.

Toyoda, H.

Yoshida, N.

Y. Igasaki, F. Li, N. Yoshida, H. Toyoda, T. Inoue, N. Mukohzaka, Y. Kobayashi, and T. Hara, Opt. Rev. 6, 339 (1999).
[CrossRef]

N. Mukohzaka, N. Yoshida, H. Toyoda, Y. Kobayashi, and T. Hara, Appl. Opt. 33, 2804 (1994).
[CrossRef] [PubMed]

Zernike, F.

F. Zernike, Science 121, 345 (1955).
[CrossRef] [PubMed]

Appl. Opt. (2)

J. Opt. Soc. Am. A (1)

Opt. Commun. (2)

J. Glückstad, Opt. Commun. 147, 16 (1998).
[CrossRef]

J. Glückstad, Opt. Commun. 130, 225 (1996).
[CrossRef]

Opt. Eng. (4)

J. W. Han, C. S. Park, D. H. Ryu, and E. S. Kim, Opt. Eng. 38, 47 (1999).
[CrossRef]

E. G. Johnson, J. D. Brasher, D. Gregory, P. Erbach, M. Duignan, G. Behrman, S. H. Lee, W. Dashner, and P. Long, Opt. Eng. 37, 18 (1998).
[CrossRef]

S. Lai, Opt. Eng. 35, 2470 (1996).
[CrossRef]

B. Javidi and J. L. Horner, Opt. Eng. 33, 1752 (1994).
[CrossRef]

Opt. Lett. (2)

Opt. Rev. (1)

Y. Igasaki, F. Li, N. Yoshida, H. Toyoda, T. Inoue, N. Mukohzaka, Y. Kobayashi, and T. Hara, Opt. Rev. 6, 339 (1999).
[CrossRef]

Phys. Today (1)

B. Javidi, Phys. Today 50(3), 27 (1997).
[CrossRef]

Proc. SPIE (1)

J. Glückstad, Proc. SPIE 3715, 152 (1999).
[CrossRef]

Science (1)

F. Zernike, Science 121, 345 (1955).
[CrossRef] [PubMed]

Other (1)

J. Glückstad, “An optical encryption and decryption method and system,” international patent application PCT/DK99/0031 (July3, 1998).

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (3)

Fig. 1
Fig. 1

Schematic diagram showing the generic system architecture for the phase-based decryption operation and display of the decrypted information with a phase-contrast filter.

Fig. 2
Fig. 2

Experimental system in which an expanded 633-nm beam is incident upon a pair of PAL SLM’s, which act as the phase mask (SLM1) and the phase key (SLM2).

Fig. 3
Fig. 3

Results for a binary decryption of the 7×7 pixel test pattern, showing (a) the decrypted phase information without the PCF in place, (b) the decrypted image displayed by the PCF, and, for comparison, (c) a graphic representation of the original information that was encoded.

Metrics