High efficiency panchromatic photopolymer recording material for holographic data storage systems

Vayalamkuzhi, Pramitha; Das, Bhargab; Joseph, Joby; Joseph, Rani; Sreekumar, K.; Kartha, C. Sudha

doi:10.1016/j.optmat.2015.12.042

Cited by 18 publications

(7 citation statements)

References 31 publications

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“…Ио-ны Ag + , используемые в качестве сшивающего ре-агента, позволяют регистрировать пропускающие го-лограммы высокого качества в реальном времени в ПВА/акриламидной композиции [72]. Для регистрации голограмм с ДЭ= 70% энергетические затраты излуче-ния гелий-неонового лазера составляли 10 mJ/cm 2 [73]. Для предотвращения агрегации наночастиц Au в ПВС/акриламидных композициях наночастицы покрыва-ли цитрат-ионами [74].…”

Section: O O Ohunclassified

Современное Состояние Разработки Светочувствительных Сред Для Голографии (Обзор)

Барачевский¹

2018

Журнал Технической Физики

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Section: O O Ohunclassified

Современное Состояние Разработки Светочувствительных Сред Для Голографии (Обзор)

Барачевский¹

2018

Журнал Технической Физики

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“…A photopolymer for holography is a form of light-responsive material based on polymerization reaction, which has the advantages of high diffraction efficiency, high spatial resolution and a simple preparation process. It has broad application prospects in the fields of sensors [ 1 , 2 , 3 , 4 ], diffractive optical elements [ 5 , 6 , 7 , 8 , 9 ], holographic interferometry [ 10 , 11 ], displays [ 12 , 13 ] and holographic recording materials [ 14 , 15 ]. The photopolymer mainly contains film formers, photosensitizers, photoinitiators and polymerizable monomers.…”

Section: Introductionmentioning

confidence: 99%

Effect of Glycerol on an N-Vinylpyrrolidone-Based Photopolymer for Transmission Holography

Shi

et al. 2021

Polymers

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N-vinylpyrrolidone (NVP) has a large molecular structure, so it is difficult to diffuse during holographic recording, especially at low spatial frequencies. We used glycerol to promote the diffusion of NVP, and successfully improved the holographic performance of the photopolymer at low spatial frequencies. As the concentration of glycerol increases, the holographic performance first increases and then remains stable. The optimal concentration of glycerol is 0.21 mol/L. At this concentration, the maximum diffraction efficiency of the photopolymer is 84%, the refractive index modulation is 1.95 × 10−3, and the photosensitive sensitivity is 7.91 × 10−4 cm2/mJ. Compared with the control group, the maximum diffraction efficiency, maximum refractive index modulation and photosensitivity at low spatial frequencies (800 lp/mm) have increased by 11.19 times, 4.69 times and 1.71 times, respectively. Using the optimized photopolymer for transmission holographic recording and reproduction, we have obtained a clear and bright transmission hologram. The photopolymer modified with glycerol is expected to be applied to the fields of holography, diffractive optics, and so on.

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“…Photopolymers are a kind of light-responsive material based on photopolymerization. They have been broadly applied in many fields, such as displays, , sensors, − holographic interferometry, , optical elements, − data storage, − and so on. Photopolymers stand out in various holographic recording materials due to their advantages of high diffraction efficiency, high spatial resolution, high sensitivity, and simple postprocessing.…”

Section: Introductionmentioning

confidence: 99%

Effect of Monomers on the Holographic Properties of Poly(vinyl alcohol)-Based Photopolymers

Shi

et al. 2020

ACS Appl. Polym. Mater.

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Based on the poly(vinyl alcohol) (PVA) system, photopolymers were prepared with two different monomers: Nvinylpyrrolidone (NVP) and acrylamide (AM). The maximum diffraction efficiency of the photopolymers was more than 85%, and the maximum sensitivity was 17.77 × 10 −3 cm 2 /mJ. The optimized photopolymer with high diffraction efficiency and high photosensitivity can achieve both the recording and reproduction of reflection holography and the recording and reproduction of transmission holography. At the same time, the effects of monomer on holographic properties of photopolymers were studied. It was found that the reactivity and migration rate of the monomer worked together on the polymerization rate, which affected the holographic properties of the photopolymer. To verify the influence of the structure of NVP and AM on the reactivity and migration rate, the transmittance and the real-time diffraction efficiency measurements were innovatively used. The NVP with high electron cloud density was more reactive, while the AM with low molecular weight and simple molecular structure had a faster migration rate.

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High efficiency panchromatic photopolymer recording material for holographic data storage systems

Cited by 18 publications

References 31 publications

Современное Состояние Разработки Светочувствительных Сред Для Голографии (Обзор)

Современное Состояние Разработки Светочувствительных Сред Для Голографии (Обзор)

Effect of Glycerol on an N-Vinylpyrrolidone-Based Photopolymer for Transmission Holography

Effect of Monomers on the Holographic Properties of Poly(vinyl alcohol)-Based Photopolymers

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