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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 8 — Mar. 10, 2001
  • pp: 1226–1235

Phase-only optical decryption of a fixed mask

Paul C. Mogensen and Jesper Glückstad  »View Author Affiliations


Applied Optics, Vol. 40, Issue 8, pp. 1226-1235 (2001)
http://dx.doi.org/10.1364/AO.40.001226


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Abstract

We present a system for the implementation of phase-only optical decryption of an encrypted fixed phase mask. We achieve decryption by superimposing a decrypting phase key, implemented on a phase-only spatial light modulator with an encrypted phase mask in two equivalent image planes in an optical system. The decrypted phase information is retrieved by the generalized phase-contrast technique. We have constructed a compact experimental system that uses a 635-nm diode laser in which a fixed encrypted 0/π binary phase mask is decrypted by a binary phase key produced electronically on the spatial light modulator. The key is aligned by electronic scrolling of its position with respect to the mask.

© 2001 Optical Society of America

OCIS Codes
(070.4560) Fourier optics and signal processing : Data processing by optical means
(100.5090) Image processing : Phase-only filters
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(230.6120) Optical devices : Spatial light modulators
(350.5030) Other areas of optics : Phase

History
Original Manuscript: June 1, 2000
Revised Manuscript: October 24, 2000
Published: March 10, 2001

Citation
Paul C. Mogensen and Jesper Glückstad, "Phase-only optical decryption of a fixed mask," Appl. Opt. 40, 1226-1235 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-8-1226


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References

  1. B. Javidi, “Securing information with optical technologies,” Phys. Today 50, (3)27–32 (1997).
  2. R. L. van Renesse, Optical Document Security (Artech House, London, 1998).
  3. B. Javidi, J. L. Horner, “Optical pattern recognition for validation and security verification,” Opt. Eng. 33, 1752–1756 (1994). [CrossRef]
  4. P. Réfrégier, B. Javidi, “Optical encryption based on input plane and Fourier plane random encoding,” Opt. Lett. 20, 767–769 (1995). [CrossRef]
  5. N. Towghi, B. Javidi, Z. Lou, “Fully phase encrypted image processor,” J. Opt. Soc. Am. A 16, 1915–1927 (1999). [CrossRef]
  6. O. Matoba, B. Javidi, “Encrypted optical storage with angular multiplexing,” Appl. Opt. 38, 7288–7293 (1999). [CrossRef]
  7. S. Lai, “Security holograms using an encoded reference wave,” Opt. Eng. 35, 2470–2472 (1996). [CrossRef]
  8. B. Javidi, T. Nomura, “Securing information by digital holography,” Opt. Lett. 25, 28–30 (2000). [CrossRef]
  9. D. Weber, J. Trolinger, “Novel implementation of non-linear joint transform correlators in optical security and validation,” Opt. Eng. 38, 62–68 (1999). [CrossRef]
  10. J. W. Han, C. S. Park, D. H. Ryu, E. S. Kim, “Optical image encryption based on xor operations,” Opt. Eng. 38, 47–54 (1999). [CrossRef]
  11. E. G. Johnson, J. D. Brasher, D. Gregory, P. Erbach, M. Duignan, G. Behrman, S. H. Lee, W. Dashner, P. Long, “Optical recognition of phase-encrypted biometrics,” Opt. Eng. 37, 18–26 (1998). [CrossRef]
  12. G. Unnikrishnan, J. Joseph, K. Singh, “Optical encryption system that uses phase conjugation in a photorefractive crystal,” Appl. Opt. 37, 8181–8186 (1998). [CrossRef]
  13. E. Tarahuerce, O. Matoba, S. C. Verrall, B. Javidi, “Optoelectronic information encryption with phase-shifting interferometry,” Appl. Opt. 39, 2313–2320 (2000). [CrossRef]
  14. J. Glückstad, “Phase contrast scrambling,” International PCT patent application WO 002339A1 (3July1998).
  15. J. Glückstad, “Image decrypting common path interferometer,” in Optical Pattern Recognition X, D. P. Casasent, T. Chao, eds., Proc. SPIE3715, 152–159 (1999). [CrossRef]
  16. P. C. Mogensen, J. Glückstad, “Phase-only optical encryption,” Opt. Lett. 25, 566–568 (2000). [CrossRef]
  17. P. C. Mogensen, J. Glückstad, “A phase based optical encryption system with polarization encoding,” Opt. Commun. 173, 177–183 (2000). [CrossRef]
  18. J. Glückstad, “Pattern generation by inverse phase contrast—comment,” Opt. Commun. 147, 16–19 (1998). [CrossRef]
  19. J. Glückstad, “Phase contrast image synthesis,” Opt. Commun. 130, 225–230 (1996). [CrossRef]
  20. J. Glückstad, L. Lading, H. Toyoda, T. Hara, “Lossless light projection,” Opt. Lett. 22, 1373–1375 (1997). [CrossRef]
  21. J. Glückstad, “Graphic method for analyzing common path interferometers,” Appl. Opt. 37, 8151–8152 (1998). [CrossRef]
  22. F. Zernike, “How I discovered phase contrast,” Science 121, 345–349 (1955). [CrossRef] [PubMed]
  23. L. G. Neto, “Implementation of image encryption using phase contrast techniques,” in Optical Pattern Recognition IX, D. P. Casasent, T. Chao, eds., Proc. SPIE3386, 284–289 (1998). [CrossRef]
  24. J. Glückstad, P. C. Mogensen, “Optimal phase contrast in common-path interferometry,” Appl. Opt. 40, 268–282 (2001). [CrossRef]
  25. J. Glückstad, P. C. Mogensen, “Reconfigurable ternary-phase array illuminator based on the generalised phase contrast method,” Opt. Commun. 173, 169–175 (2000). [CrossRef]
  26. Optics and Fluid Dynamics Department, Annual progress report R-793(EN) (Risø National Laboratory, Roskilde, Denmark, 1995).
  27. N. Mukohzaka, N. Yoshida, H. Toyoda, Y. Kobayashi, T. Hara, “Diffraction efficiency analysis of a parallel-aligned nematic-liquid-crystal spatial light modulator,” Appl. Opt. 33, 2804–2811 (1994). [CrossRef] [PubMed]
  28. Y. Igasaki, F. Li, N. Yoshida, H. Toyoda, T. Inoue, N. Mukohzaka, Y. Kobayashi, T. Hara, “High efficiency electrically addressable phase-only spatial light modulator,” Opt. Rev. 6, 339–344 (1999). [CrossRef]
  29. Y. Kobayashi, Y. Igasaki, N. Yoshida, N. Fukuchi, H. Toyoda, T. Hara, M. Wu, “Compact high efficiency electrically addressable phase-only spatial light modulator,” in Diffractive/Holographic Technologies and Spatial Light Modulators VIII, I. Cindrich, S. H. Lee, R. L. Sutherland, eds., Proc. SPIE3951, 158–165 (2000). [CrossRef]
  30. P. C. Mogensen, J. Glückstad, “Practical implementation of phase-only optical encryption system,” in Optical Security and Counterfeit Deterence Techniques III, R. L. Van Renesse, W. A. Vliegenthart, eds., Proc. SPIE3973, 284–293 (2000). [CrossRef]
  31. J. W. Goodman, Introduction to Fourier Optics, 2nd ed. (McGraw-Hill, New York, 1996).

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