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Hologram recording material and hologram recording medium

A technology for holographic photography and recording materials, which can be used in hologram recording materials, holographic processes, and photoengraving processes on pattern surfaces, etc. good solubility

Inactive Publication Date: 2010-12-08
TDK CORPARATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is generally believed that the introduction of a large organic main chain component makes the matrix material have a two-component structure of an organic main chain and an inorganic network, which may not show a single action as a matrix during recording, resulting in uneven recording.

Method used

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

Examples

Experimental program
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Embodiment 1

[0099] Using diphenyldimethoxysilane, a titanium butoxide oligomer represented by the following structural formula, and silicone sol, a holographic recording material was produced by the sol-gel method in the following steps.

[0100]

[0101] (Synthesis of matrix material)

[0102] 7.8 g of diphenyldimethoxysilane and 7.2 g of titanium butoxide oligomer (manufactured by Nippon Soda, B-10) were mixed in 40 mL of tetrahydrofuran solvent to prepare an alkoxide solution. That is, the molar ratio of Si and Ti is 1:1.

[0103] To this alkoxide solution, 21.4 g of organic silica gel (MEK-ST manufactured by Nissan Chemical, particle diameter 10 to 20 nm, 30% by weight of non-volatile content) was added, and stirred overnight at room temperature. That is, the mass ratio of metal alkoxide and silica gel in the obtained alkoxide solution was 7:3.

[0104] Then, a solution consisting of 2.1 mL of water, 0.3 mL of 1N aqueous hydrochloric acid solution, and 5 mL of tetrahydrofuran was...

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Abstract

The present invention provides a hologram recording material which attains high refractive index change, flexibility, high sensitivity, low scattering, environment resistance, durability, low shrinkage, and high multiplicity, and is suitable for volume hologram recording. Also, the present invention provides a hologram recording medium. A hologram recording material comprising: an organometallic compound at least containing at least two kinds of metals, oxygen, and an aromatic group, and having an organometallic unit wherein two aromatic groups are bonded directly to one metal; metal oxide fine particles; and a photopolymerizable compound. For example, the metal oxide fine particles are selected from the group consisting of silica fine particles, alumina fine particles, titania fine particles, zirconia fine particles, and complex oxide fine particles containing one or more kinds of metal atoms which constitute said four metal oxides. A hologram recording medium (11) has a hologram recording material layer (21).

Description

technical field [0001] The present invention relates to a hologram recording material suitable for volume type hologram recording and a hologram recording medium having the hologram recording material. Background technique [0002] As a recording technology capable of large-capacity and high-speed transmission, research and development of holographic memory is underway. In O plus E, Vol. 25, No. 4, 385-390 (2003), the basic configuration and future prospects of the holographic memory are described. [0003] The properties sought for holographic recording materials include, for example, high refractive index change during recording, high sensitivity, low scattering, environmental resistance, durability, low dimensional change, and high multiplicity. As a holographic recording material, a photopolymer material mainly composed of an organic binder polymer and a photopolymerizable monomer is known. However, photopolymer materials have problems in terms of environmental resista...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/075G03F7/00G03H1/02
CPCG03H2001/0264G03F7/0757G03H2260/12G03H1/02G03F7/0042G03F7/001
Inventor 林田直树吉成次郎
Owner TDK CORPARATION
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