Method for preparing photopolymer holographic storage optical disk

A photopolymer, holographic storage technology, applied in optomechanical equipment, photo-engraving process of pattern surface, optics, etc., can solve the problems of poor long-term storage performance, high monomer volatility and high noise

Inactive Publication Date: 2011-05-11
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The third object of the present invention is to solve the problems of high monomer volatility, high noise, and poor long-term storage performance in the materials currently used to prepare photopolymer holographic storage discs (such as ZL02149193.3). On the basis of the formula, use low-volatile and non-volatile monomers as recording media, further adjust and optimize the composition and dosage of each component in the formula, and provide a photopolymer-type holographic storage material with practical prospects

Method used

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  • Method for preparing photopolymer holographic storage optical disk
  • Method for preparing photopolymer holographic storage optical disk
  • Method for preparing photopolymer holographic storage optical disk

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Preparation of perfusate: In a dark room, add 58 grams of propylene glycol diglycidyl ether, 21 grams of N-vinyl carbazole, 0.01 grams of 2,5-bis[4-(diethyl Amino)-benzylidene]cyclopentanone, 0.64 g hexaarylbiimidazole, 0.65 g 4-methyl-4H-1,2,4-triazole-3-thiol, 0.1 g BYK-066, 0.1 g BYK -306, 3 grams of dimethylformamide, mixed thoroughly to form a red transparent solution. Add 16.5 grams of triethylenetetramine to the transparent solution, stir well at room temperature for 10 to 15 minutes to make it evenly mixed, and filter with a filter with a pore size of 0.22 microns to obtain the filtrate after removing particles such as dust in the mixed solution. Put the filtrate into a vacuumable vessel for degassing under reduced pressure, then inject nitrogen gas into the filtrate in the vessel, repeat this operation twice to remove the oxygen and air bubbles in the filtrate to obtain a perfusate, and place it for use.

[0052] Preparation of optical disc molds: take 20 squa...

Embodiment 2

[0056] Adopt following formula, prepare photopolymer type holographic disc by the method for embodiment 1 (see figure 1 left disc).

[0057]

[0058]The difference from Example 1 is that 20 hollow disk-shaped substrates with an inner diameter of 15 mm, an outer diameter of 80 mm, and a thickness of 1 mm were selected for the preparation of the optical disc mold, and 10 hollow disc-shaped substrates with an inner diameter of 15 mm, an outer diameter of 20 mm, and a thickness of 0.5 mm were selected. mm circular small spacers and 10 large circular spacers with an inner diameter of 76mm, an outer diameter of 80mm, and a thickness of 0.5mm. The sheet material is polytetrafluoroethylene, and the filter used is a filter with a pore size of 0.45 microns.

[0059] The use of the disc: use a solid-state laser with a wavelength of 473nm as the light source, and the reference light intensity is 1.5mW / cm 2 , the maximum light intensity of object light is 1.5mW / cm 2 , the angle betwe...

Embodiment 3

[0061] A photopolymer holographic disc was prepared according to the method of Example 1 using the following formula.

[0062]

[0063]

[0064] The difference from Example 1 is that 20 square substrates with a size of 100×100×1.0 (length×width×height, unit: mm) and 10 square substrates with a size of 100×100 (length × width, unit: mm), the inner frame size is 94 × 94 (length × width, unit: mm), and the thickness is 0.4mm. Special B270 optical glass, the material of the gasket is silicone rubber, and the filter used is a filter with a pore size of 0.45 microns.

[0065] The use of the disc: use an argon ion laser with a wavelength of 514nm as the light source, and the reference light intensity is 1.5mW / cm 2 , the maximum light intensity of object light is 1.5mW / cm 2 , the angle between the reference light and the object light is 60 degrees, and the high-density holographic storage of image information can be carried out by changing the position and multiplexing the ang...

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Abstract

The invention belongs to the field of high-density optical storage, and relates to a method for preparing a photopolymer holographic storage optical disk. The invention provides a photopolymer holographic storage material simultaneously, which is a multi-component mixing material in which a low-refractive index amine cured epoxy system is taken as film-forming resin and a high-refractive index alkenyl monomer is taken as an information recording component. The invention provides a method for preparing a size-controlled photopolymer holographic storage optical disk die based on a material formula. Simultaneously, the invention provides a method for preparing a photopolymer holographic storage optical disk, which is simple to operate, is low in cost and can be implemented at room temperature. In the optical disk prepared by the method, the thickness of the holographic storage material is between 100 and 500 micrometers; and various lasers which are matched with the wavelengths can be selected as information recording light sources within the wide-waveband range of between 400 and 600 nanometers by selecting different photosensitizers, and the mass storage of information is realized by angle and wavelength multiplexing.

Description

technical field [0001] The invention belongs to the field of high-density optical storage, and in particular relates to a preparation method of a photopolymer holographic storage disc and a photopolymer holographic storage material used for preparing a photopolymer holographic storage disc. technical background [0002] With the advent of the information age of human society, realizing large-capacity, high-efficiency, and fast information storage and transmission has become an increasingly urgent problem to be solved in today's society. Many new storage materials and storage technologies have emerged. Among them, holographic storage has attracted widespread attention due to its advantages of high redundancy, high storage capacity, fast data transmission rate and access time, and parallel addressing. After more than 30 years At present, it has become the mass high-speed optical information storage technology that is most likely to be the first to be put into practical use. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/245G03F7/027
Inventor 赵榆霞吴飞鹏施盟泉
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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