Methods for storing holographic data

The present invention provides a method for storing holographic data comprising providing a holographic storage medium comprising an optically transparent substrate including a photochemically active dye having at least two nitrone groups; and irradiating the optically transparent substrate with a h...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MCLAUGHLIN, MICHAEL JEFFREY, LONGLEY, KATHRYN LYNN, NAIK, SHANTARAM NARAYAN, SUNDARARAMAN, VARADARAJAN, ERBEN, CHRISTOPH GEORG, CHAUHAN, YOGENDRASINH BHARATSINH, CHAUDHARI, MAHESH KISAN, SHET, JYOTI BALKRISHNA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVES CHEMISTRY DYES INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER LAKES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS PHYSICS POLISHES
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Beschreibung
Zusammenfassung:	The present invention provides a method for storing holographic data comprising providing a holographic storage medium comprising an optically transparent substrate including a photochemically active dye having at least two nitrone groups; and irradiating the optically transparent substrate with a holographic interference pattern, wherein the pattern has a first wavelength and an intensity both sufficient to convert, within a volume element of the substrate, at least some of the photochemically active dye into a photo-product, and producing within the irradiated volume element concentration variations of the photo-product corresponding to the holographic interference pattern, thereby producing a first optically readable datum corresponding to the volume element.