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Method for preparing green light sensitive holographic photoluminescent polymer and holographic recording dry plate

A photopolymer and holographic recording technology, applied in optics, photosensitive materials, instruments, etc., can solve the problems of reducing the exposure sensitivity of materials and affecting the optical quality of the film surface

Inactive Publication Date: 2005-03-02
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

F.T.Neill et al etc. (F.T.Neill, J.R.Lawrence, J.T.Sheridan. "improvement of holographic recording material using aerosol sealant, J.Opt.A: PureAppl.Opt.3 (2001): 20-25) use aerosol as sealant, Instead of a glass slide, this was found to be a cheaper and easier way to isolate the photopolymer material from the air, but doing so would compromise the optical quality of the film surface and reduce the exposure sensitivity of the material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. The formula of the selected green light-sensitive holographic photopolymer is as follows:

[0025] Polyvinyl alcohol: 60wt%

[0026] Acrylamide: 25.0wt%

[0027] N-phenylglycine: 0.69wt%

[0028] Phycoerythrin B: 0.18wt%

[0029] Dimethylsulfoxide: 14.13wt%

[0030] And weigh each raw material in proportion;

[0031] The preparation method of the green light-sensitive holographic dry plate, its preparation process is:

[0032] (1) firstly add 60wt% polyvinyl alcohol into distilled water, heat on a constant temperature magnetic heating stirrer, the temperature is controlled at 80°C, and after it is fully dissolved, 7wt% polyvinyl alcohol aqueous solution is obtained;

[0033] (2) Fully dissolve 0.18wt% phycoerythrin B dye in distilled water, and prepare 2.5×10 -3 mol L -1 solution;

[0034] (3) Add 25wt% acrylamide crystals to the polyvinyl alcohol aqueous solution obtained in the first step above, add 14.13wt% plasticizer dimethyl sulfoxide and 0.69wt% N-phen...

Embodiment 2

[0037] Embodiment 2: prepare according to the preparation process of embodiment 1, this photopolymer component content is:

[0038] Polyvinyl alcohol: 60wt%

[0039] Acrylamide: 25.0wt%

[0040] N-phenylglycine: 1.40wt%

[0041] Phycoerythrin B: 0.14wt%

[0042] Dimethylsulfoxide: 13.46wt%

[0043] The diffraction efficiency of the obtained photopolymer holographic dry plate can reach 45%, and the exposure sensitivity is 58mJ / cm 2 .

Embodiment 3

[0045] Prepare according to the preparation process of Example 1, the photopolymer component content is:

[0046] Polyvinyl alcohol: 60wt%

[0047] Acrylamide: 25.0wt%

[0048] N-phenylglycine: 2.08wt%

[0049] Phycoerythrin B: 0.14wt%

[0050] Dimethylsulfoxide: 12.78wt%

[0051] The resulting photopolymer holographic dry plate has a diffraction efficiency of 37% and an exposure sensitivity of 62mJ / cm 2 .

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PUM

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Abstract

The invention is a green light sensitive holographic photopolymer and a method of preparing holographic record dry plate, where the photopolymer is composed of film-forming polyvinyl alcohol, monomeric acylamide and diacylamide, photosensitive agent phycoerythrin B, initiator N-phenylglycine and plasticizing agent. The preparing course of the holographic dry plate: firstly dissolving the polyvinyl alcohol in the distilled water to make 7% (wt) polyvinyl alcohol water solution; secondly, adding acylamide crystals and methylene diacylamide crystals as well as N-phenylglycine and plasticizing agent to the polyvinyl alcohol water solution; thirdly, adding in phycoerythrin B dissolved in the distilled water; fourthly, pouring the above sol onto a basal plate and after the water is completely volatilized, making the photopolymer holographic drying plate. It is sensitive to the green light and the environmental humidity has a little effect on it, and it has strong shrink resistance, short drying time, diffraction efficiency able to reach 65%, and exposure strength 50 mJ / sq cm and it is especially applied to dry-processing of optical holographic record.

Description

technical field [0001] The invention relates to holographic storage, in particular to a green light-sensitive holographic photopolymer for holographic storage and a preparation method for a holographic recording dry plate. The holographic dry plate of the present invention is especially suitable for digital holographic storage on-line by dry method. Background technique [0002] Holographic storage is a large-capacity and high-storage-density storage method that emerged with the development of laser holography after the invention of high-coherence light source laser in the 1960s. Compared with traditional storage methods, it has high redundancy, high storage capacity, The advantages of fast data transfer rate, fast access time, and parallel content addressing are highly valued in the field of optical information storage. The application of digital holographic storage largely depends on whether there is a suitable dry method for online processing of holographic recording med...

Claims

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Application Information

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IPC IPC(8): G03C1/00
Inventor 弓巧侠顾冬红黄明举干福熹
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI