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Applied Optics
Data stored as volume holograms—optical interference patterns imprinted into a photosensitive storage material—can be accessed both by address and by content. An optical correlation-based search compares each input query against all stored records simultaneously, a massively parallel but inherently noisy analog process. With data encoding and signal postprocessing we demonstrate a holographic content-addressable data-storage system that searches digital data with high search fidelity. © 1999 Optical Society of America.
Brian M. King, Geoffrey W. Burr, et al.
Applied Optics
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