1 October 2004 Decrypting binary phase patterns by amplitude
Author Affiliations +
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)
Jesper Glückstad, Jesper Glückstad, Vincent Ricardo Daria, Vincent Ricardo Daria, Peter John L. Rodrigo, Peter John L. Rodrigo, "Decrypting binary phase patterns by amplitude," Optical Engineering 43(10), (1 October 2004). https://doi.org/10.1117/1.1783277 . Submission:
JOURNAL ARTICLE
9 PAGES


SHARE
RELATED CONTENT

Dark GPC
Proceedings of SPIE (March 03 2016)
Phase-only light projection
Proceedings of SPIE (April 16 1998)
New phase contrast methods for optical processing
Proceedings of SPIE (March 05 2002)

Back to Top