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Optical associative memory using an orthogonalized hologram

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Abstract

A two-dimensional orthogonal model of optical associative memory for storage of nonnegative patterns using a single hologram is presented. Two sets of patterns after prior orthogonal processing are composed and used for hologram recording, which permits the sequential holographic recordings to be carried on spatially separated regions of the recording material. High diffraction efficiency of the hologram is achieved. Computer simulations and optical demonstrations are also given.

© 1991 Optical Society of America

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