Open AccessKinoform-based iterative random phase encryption
Author(s) -
Liu Fu-Min,
Hongchen Zhai,
Xiaoping Yang
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.2462
Subject(s) - computer science , encryption , phase (matter) , key (lock) , algorithm , phase retrieval , fourier transform , iterative method , process (computing) , iterative and incremental development , fast fourier transform , optics , physics , computer security , software engineering , quantum mechanics , operating system
We propose a kinoform-based iterative random phase encryption method, in which t he phase retrieval algorithm is divided into two steps: 1) random phase encrypti on and 2) iteration solving for phase distributions of both the key phase plate and the kinoform. Since the iterations are executed between a Fourier spectrum a nd the kinoform, the decryption errors can be effectively depressed. By the quan tization process for the phase distributions during the iterations, a method of increasing the abundance of design is used to depress the decryption errors. The simulation results are presented at the end, which agree well with the theoreti cal analysis.