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Analog optical correlation of volume holograms for searching digital databases

Geoffrey W. Burr, Holger Hanssen, Sebastian Kobras, and Hans Coufal

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Abstract

The spatial- and wavelength-selective properties of the volume hologram make it possible to overlap multiple holograms within the same volume, yet access them independently. Information displayed on a spatial light modulator can be densely packed into a photosensitive material by recording the interference fringes between coherent reference and object beams [1] (Figure la).

© 1999 Optical Society of America

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