Artículo
Optical encryption using phase-shifting interferometry in a joint transform correlator
Fecha de publicación:
09/2006
Editorial:
Optical Society Of America
Revista:
Optics Letters
ISSN:
0146-9592
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
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.
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Articulos(OCA CIUDAD UNIVERSITARIA)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Citación
La Mela, Cecilia; Iemmi, Claudio Cesar; Optical encryption using phase-shifting interferometry in a joint transform correlator; Optical Society Of America; Optics Letters; 31; 7; 9-2006; 2562-2564
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