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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 10 — May. 9, 2011
  • pp: 9008–9019

Optical cryptography topology based on a three-dimensional particle-like distribution and diffractive imaging

Wen Chen and Xudong Chen  »View Author Affiliations

Optics Express, Vol. 19, Issue 10, pp. 9008-9019 (2011)

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In recent years, coherent diffractive imaging has been considered as a promising alternative for information retrieval instead of conventional interference methods. Coherent diffractive imaging using the X-ray light source has opened up a new research perspective for the measurement of non-crystalline and biological specimens, and can achieve unprecedentedly high resolutions. In this paper, we show how a three-dimensional (3D) particle-like distribution and coherent diffractive imaging can be applied for a study of optical cryptography. An optical multiple-random-phase-mask encoding approach is used, and the plaintext is considered as a series of particles distributed in a 3D space. A topology concept is also introduced into the proposed optical cryptosystem. During image decryption, a retrieval algorithm is developed to extract the plaintext from the ciphertexts. In addition, security and advantages of the proposed optical cryptography topology are also analyzed.

© 2011 OSA

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(070.4560) Fourier optics and signal processing : Data processing by optical means
(100.2000) Image processing : Digital image processing
(100.4998) Image processing : Pattern recognition, optical security and encryption

ToC Category:
Image Processing

Original Manuscript: January 7, 2011
Revised Manuscript: March 6, 2011
Manuscript Accepted: April 17, 2011
Published: April 25, 2011

Wen Chen and Xudong Chen, "Optical cryptography topology based on a three-dimensional particle-like distribution and diffractive imaging," Opt. Express 19, 9008-9019 (2011)

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