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›› 2003, Vol. 20 ›› Issue (3): 265-272.DOI: 10.7523/j.issn.2095-6134.2003.3.001

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Progress of Optical Security Systems Based on Random-Phase Encoding Technology

ZHANG Jing, Juan SITU GuoHai, ZHANG Yan   

  1. Department of Physics, Graduate School of the Chinese Academic of Sciences, Beijing 100039, China
  • Received:2002-11-05 Revised:2002-03-11 Online:2003-05-10

Abstract:

Recently optical techniques have been proposed for security information applications, which are far beyond the scope of the classical optical variable devices such as rainbow holograms.More and more researchers have been attracted to this new field and are setting up several optical architectures for verification or encryption.Among those architectures the most attractive one is the so-called double random-phase encoding encryption scheme proposed by B.Javidi and coworkers in 1995.Review this technique and its progress in detail

Key words: double random-phase encoding, optical encryption, optical security system

CLC Number: