An optical storage system that includes a spatial light modulator, a plurality of hologram storage volumes and a correlation-plane detector. The spatial light modulator, such as a liquid crystal modulator or a micromechanical reflection modulator, spatially modulates at least one first beam of light...http://www.google.de/patents/US6205107?utm_source=gb-gplus-sharePatent US6205107 - Architectures for high-capacity content-addressable holographic databases
