Optical encryption using phase-shifting interferometry in a joint transform correlator

We propose an optical encryption technique where the encrypted field and the decrypting key are obtained by three-step phase-shifting interferometry and registered as digital Fresnel holograms in a joint transform correlator architecture. Decryption can be achieved by digital or optical means. The t...

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Detalles Bibliográficos
Autores principales: La Mela, C., Iemmi, C.
Formato: JOUR
Materias:
Decrypting key
Fresnel holograms
Joint transform correlator
Optical encryption
Communication channels (information theory)
Digital communication systems
Holograms
Interferometry
Optical correlation
Optical properties
Phase shifters
Cryptography
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01469592_v31_n17_p2562_LaMela
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01469592_v31_n17_p2562_LaMela
record_format dspace
spelling todo:paper_01469592_v31_n17_p2562_LaMela2023-10-03T15:00:22Z Optical encryption using phase-shifting interferometry in a joint transform correlator La Mela, C. Iemmi, C. Decrypting key Fresnel holograms Joint transform correlator Optical encryption Communication channels (information theory) Digital communication systems Holograms Interferometry Optical correlation Optical properties Phase shifters Cryptography We propose an optical encryption technique where the encrypted field and the decrypting key are obtained by three-step phase-shifting interferometry and registered as digital Fresnel holograms in a joint transform correlator architecture. Decryption can be achieved by digital or optical means. The technique allows the complete process to be achieved at high speed and data to be transfered via digital communication channels. Experimental implementation is performed in a system based on a programmable liquid-crystal TV display working in pure phase mode to represent the input data and to introduce the required phase shifts. A CCD is used to register the output data. © 2006 Optical Society of America. Fil:La Mela, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Iemmi, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01469592_v31_n17_p2562_LaMela
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Decrypting key
Fresnel holograms
Joint transform correlator
Optical encryption
Communication channels (information theory)
Digital communication systems
Holograms
Interferometry
Optical correlation
Optical properties
Phase shifters
Cryptography
spellingShingle Decrypting key
Fresnel holograms
Joint transform correlator
Optical encryption
Communication channels (information theory)
Digital communication systems
Holograms
Interferometry
Optical correlation
Optical properties
Phase shifters
Cryptography
La Mela, C.
Iemmi, C.
Optical encryption using phase-shifting interferometry in a joint transform correlator
topic_facet Decrypting key
Fresnel holograms
Joint transform correlator
Optical encryption
Communication channels (information theory)
Digital communication systems
Holograms
Interferometry
Optical correlation
Optical properties
Phase shifters
Cryptography
description We propose an optical encryption technique where the encrypted field and the decrypting key are obtained by three-step phase-shifting interferometry and registered as digital Fresnel holograms in a joint transform correlator architecture. Decryption can be achieved by digital or optical means. The technique allows the complete process to be achieved at high speed and data to be transfered via digital communication channels. Experimental implementation is performed in a system based on a programmable liquid-crystal TV display working in pure phase mode to represent the input data and to introduce the required phase shifts. A CCD is used to register the output data. © 2006 Optical Society of America.
format JOUR
author La Mela, C.
Iemmi, C.
author_facet La Mela, C.
Iemmi, C.
author_sort La Mela, C.
title Optical encryption using phase-shifting interferometry in a joint transform correlator
title_short Optical encryption using phase-shifting interferometry in a joint transform correlator
title_full Optical encryption using phase-shifting interferometry in a joint transform correlator
title_fullStr Optical encryption using phase-shifting interferometry in a joint transform correlator
title_full_unstemmed Optical encryption using phase-shifting interferometry in a joint transform correlator
title_sort optical encryption using phase-shifting interferometry in a joint transform correlator
url http://hdl.handle.net/20.500.12110/paper_01469592_v31_n17_p2562_LaMela
work_keys_str_mv AT lamelac opticalencryptionusingphaseshiftinginterferometryinajointtransformcorrelator
AT iemmic opticalencryptionusingphaseshiftinginterferometryinajointtransformcorrelator
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