3 Dimensional analysis of holographic photopolymers based memories

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Title: 3 Dimensional analysis of holographic photopolymers based memories
Authors: Gallego, Sergi
Ortuño, M.
Neipp, Cristian
Márquez, A.
Beléndez, A.
Pascual, I.
Kelly, John V.
Sheridan, John T.
Permanent link: http://hdl.handle.net/10197/3343
Date: 2-May-2005
Abstract: One of the most interesting applications of photopolymers is as holographic recording materials for holographic memories. One of the basic requirements for this application is that the recording material thickness must be 500 µm or thicker. In recent years many 2-dimensional models have been proposed for the analysis of photopolymers. Good agreement between theoretical simulations and experimental results has been obtained for layers thinner than 200 µm. The attenuation of the light inside the material by Beer’s law results in an attenuation of the index profile inside the material and in some cases the effective optical thickness of the material is lower than the physical thickness. This is an important and fundamental limitation in achieving high capacity holographic memories using photopolymers and cannot be analyzed using 2-D diffusion models. In this paper a model is proposed to describe the behavior of the photopolymers in 3-D. This model is applied to simulate the formation of profiles in depth for different photopolymer viscosities and different intensity attenuations inside the material.
Funding Details: Science Foundation Ireland
Type of material: Journal Article
Publisher: Optical Society of America
Copyright (published version): 2005 OSA
Keywords: HolographyHolographic recording materialsVolume holographic gratings
Subject LCSH: Holography
Holographic storage devices (Computer science)
DOI: 10.1364/OPEX.13.003543
Language: en
Status of Item: Not peer reviewed
Appears in Collections:Electrical and Electronic Engineering Research Collection

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