Decrypting binary phase patterns by amplitude

Jesper Glückstad; Vincent Ricardo Daria; Peter John L. Rodrigo

doi:10.1117/1.1783277

1 October 2004 Decrypting binary phase patterns by amplitude

Jesper Glückstad, Vincent Ricardo Daria, Peter John L. Rodrigo

Author Affiliations +

Optical Engineering, Vol. 43, Issue 10, (October 2004). https://doi.org/10.1117/1.1783277

Abstract

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 (SPIE)

Citation Download Citation

Jesper Glückstad, Vincent Ricardo Daria, and Peter John L. Rodrigo "Decrypting binary phase patterns by amplitude," Optical Engineering 43(10), (1 October 2004). https://doi.org/10.1117/1.1783277

Published: 1 October 2004

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