Journal article
Decrypting binary phase patterns by amplitude
A method for decrypting a binary phase-only mask using an amplitude-only spatial light modulator key is proposed. The system is based on a double passage through a generalized phase contrast setup. A binary amplitude key is converted to phase for decrypting a binary phase-only encrypted pattern on the first passage.
The decrypted phase pattern is subsequently converted to an intensity pattern on the second passage. A compact dual-path system, applicable in reflection geometry, is suggested for this decryption operation. © 2004 Society of Photo-Optical Instrumentation Engineers.
Language: | English |
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Year: | 2004 |
Pages: | 2250-2258 |
ISSN: | 15602303 and 00913286 |
Types: | Journal article |
DOI: | 10.1117/1.1783277 |
ORCIDs: | Rodrigo, P.J. |