Methods for storing holographic data and articles having enhanced data storage lifetime derived therefrom

Methods for storing holographic data and articles having enhanced data storage lifetime derived therefrom

The present invention provides a method for storing holographic data comprising providing an optically transparent substrate comprising a photochemically active dye and a photo-acid generator; irradiating the optically transparent substrate with a holographic interference pattern, wherein the patter...

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Hauptverfasser: BODEN EUGENE PAULING, SHI XIAOLEI, ERBEN CHRISTOPH GEORG
Format: Patent
Sprache:eng
Schlagworte:
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHIC PROCESSES OR APPARATUS
HOLOGRAPHY
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHOTOGRAPHY
PHYSICS
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creator BODEN EUGENE PAULING
SHI XIAOLEI
ERBEN CHRISTOPH GEORG
description The present invention provides a method for storing holographic data comprising providing an optically transparent substrate comprising a photochemically active dye and a photo-acid generator; 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, 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; and irradiating the optically transparent substrate at a second wavelength and intensity sufficient to activate the photo-acid generator to stabilize the optically readable datum.
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subjects CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHIC PROCESSES OR APPARATUS
HOLOGRAPHY
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHOTOGRAPHY
PHYSICS
title Methods for storing holographic data and articles having enhanced data storage lifetime derived therefrom
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