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Decrypting binary phase patterns by amplitude

Gluckstad, Jesper; Daria, Vincent; Rodrigo, Peter J


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...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
Source: Optical Engineering
DOI: 10.1117/1.1783277


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