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Hologram recording material and hologram recording medium

A technology of holographic recording material and holographic recording medium, which is applied in the directions of holographic recording material, recorded information storage, holographic process, etc., can solve the problems of recording and use content of holographic memory without disclosing blue laser, and achieve good recording characteristics, The effect of ensuring mechanical strength and improving mechanical strength

Inactive Publication Date: 2008-04-02
TDK CORPARATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Although any of the above-mentioned publications discloses holographic memory recording using a green laser, there is no disclosure about the use of holographic memory recording using a blue laser.

Method used

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  • Hologram recording material and hologram recording medium
  • Hologram recording material and hologram recording medium
  • Hologram recording material and hologram recording medium

Examples

Experimental program
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Embodiment 1

[0127] Using phenyltrimethoxysilane and titanium dioxide sol, a holographic recording material was produced by the sol-gel method in the following procedure.

[0128] (Preparation of matrix material)

[0129] To 7.8 g of phenyltrimethoxysilane, 20 ml of isopropanol was added. Next, while stirring the alkoxide solution, a solution of 1.0 ml of water, 0.1 ml of 1N hydrochloric acid aqueous solution, and 2 ml of isopropanol was added dropwise at room temperature, followed by heating and refluxing for 1 hour to proceed the hydrolysis reaction.

[0130] After cooling the solution to room temperature, add TiO to the solution 2 40 g of sol (manufactured by Catalyzer Kasei Kogyo Co., Ltd., isopropanol dispersion, non-volatile matter concentration 20.5% by weight), and further stirred for 1 hour at room temperature. The mass ratio of silane oxide / titanium-containing oxide fine particles = 0.95 / 1.0. In this way, a sol solution was obtained.

[0131] (Photopolymerizable compound)

[0132] To...

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Abstract

The present invention provides a hologram recording material which is suitable for volume hologram record and can attain high refractive index change, flexibility, high sensitivity, low scattering, environment resistance, durability, low dimensional change (low shrinkage) and high multiplicity in holographic memory record using not only a green laser but also a blue laser; and provides a hologram recording medium having a hologram recording layer comprising the hologram recording material. A hologram recording material comprising a metal oxide matrix and a photopolymerizable compound, wherein the metal oxide matrix comprises at least Si and Ti as metallic elements, and Ti originates from titanium-containing oxide fine particles. A hologram recording medium ( 11 ) having the hologram recording layer ( 21 ) comprising the hologram recording material.

Description

Technical field [0001] The present invention relates to a holographic recording material suitable for volumetric holographic recording, and a holographic recording medium having a holographic recording layer composed of the holographic recording material. In particular, the present invention relates to a holographic recording material suitable for recording / reproducing by not only a green laser but also a blue laser, and a holographic recording medium having a holographic recording layer composed of the holographic recording material. Background technique [0002] As a recording technology that enables large-capacity and high-speed transportation, research and development of holographic memory are underway. In ○plus E, Vol. 25, No. 4, 385-390 (2003), the basic structure and future prospects of the holographic memory are described. [0003] As the characteristics required for holographic recording materials, there are, for example, high refractive index change, high sensitivity, l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/00G03F7/075G03H1/02G11B7/24035G11B7/24044G11B7/2433
CPCG03H1/02G03H2260/12G11B7/2531G03H2001/0264G03H2250/43G03F7/001
Inventor 林田直树小须田敦子吉成次郎
Owner TDK CORPARATION
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