Optical properties of photopolymerizable nanocomposites containing nanosized molecular sieves

Naydenova, Izabela; Leite, Ema Sacadura; Babeva, Tsvetanka; Pandey, Nitesh; Baron, T.; Yovcheva, T.; Sainov, S.; Martin, Suzanne; Mintova, Svetlana; Toal, Vincent

doi:10.1088/2040-8978/13/4/044019

Cited by 27 publications

(22 citation statements)

References 35 publications

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“…3a) is due to counter-diffusion processes during the holographic recording whereby monomers diffuse into bright regions as a result of a change in concentration gradient as polymerisation proceeds and the nanoparticles migrate from bright to dark regions during the recording. We can attribute the increase in diffraction efficiency to the increased refractive index modulation caused by nanoparticle redistribution [21].…”

Section: Resultsmentioning

confidence: 98%

Nanozeolites doped photopolymer layers with reduced shrinkage

Moothanchery¹,

Naydenova²,

Mintova³

et al. 2011

Opt. Express

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An acrylamide based photopolymer doped with pure silica MFItype zeolite (silicalite-1) nanoparticles has been characterized for holographic recording purposes. The concentrations of the silicalite-1 nanoparticles in the photopolymer layers were 1, 2.5, 5 and 7.5 wt. %. The inclusion of silicalite-1 nanoparticle in the photopolymer has resulted in an increase of the diffraction efficiency by up to 40%, and decrease of the shrinkage from 1.32% to 0.57%. The best results were obtained in layers doped with 5 wt. % silicalite-1 nanoparticles.

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Section: Resultsmentioning

confidence: 98%

Nanozeolites doped photopolymer layers with reduced shrinkage

Moothanchery¹,

Naydenova²,

Mintova³

et al. 2011

Opt. Express

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“…They are typically composed of molecules of initiators and monomers which polymerize after illumination of light. In last 10 years, photopolymerizable recording materials with nanoparticles are the subject of an intensive study [3][4][5][6][7]. In comparison with common photopolymers, they contain inert inorganic particles which have special optical, magnetic, or luminescent properties.…”

Section: Photopolymer Recording Mediummentioning

confidence: 99%

Real-time measurements of diffraction grating growth in photopolymer recording materials

Květoň

Havránek

Škereň

et al. 2013

EPJ Web of Conferences

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Abstract. Self-developing ability of photopolymer recording material enables measurements of growth of a refractive index grating in the real-time during a holographic exposure. In our laboratory, we prepare thin layers of photopolymer recording materials and measure their response on harmonic interference field. The results of the measurements are used for characterization of the recording process running in photopolymers and optimization of their chemical composition. Recently, the detection setup has been adapted to measure the phase shift between the recording interference field and the refractive index grating simultaneously with the grow-curves. The phase shift measurement is especially important in the case of photopolymers with nanoparticles as they are spatially redistributed within the layer during the holographic exposure. In the paper, we introduce the principles of the measurement technique, describe our exposure and detection setup, analyze the grow-curve, and show some results obtained from our measurements of the newly developed photopolymer with AgBr nanoparticles.

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“…One option is to decrease the permeability of the photopolymer matrix, which would prevent the diffusion of short polymer chains [15]. The addition of different types of nanoparticles to the composition will be investigated, as this has previously been shown to improve the sensitivity and refractive index modulation of photopolymer materials [16]. Characterization of the photopolymer for recording in reflection mode is in progress.…”

Section: Spatial Frequency Dependence Of New Photopolymermentioning

confidence: 99%

New non-toxic holographic photopolymer material

Cody¹,

Naydenova²,

Mihaylova

2011

J. Opt.

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There is an increasing need for environmentally friendly holographic recording materials which can be produced in bulk with little risk to the health of workers in manufacturing. This is why the development of non-toxic photopolymer materials is crucial, and has attracted attention in recent years. Composition and preliminary characterization of a new non-toxic photopolymer material are presented. It operates well at a range of spatial frequencies, and achieves diffraction efficiencies and refractive index modulation comparable to the known acrylamide-based photopolymers.

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Optical properties of photopolymerizable nanocomposites containing nanosized molecular sieves

Cited by 27 publications

References 35 publications

Nanozeolites doped photopolymer layers with reduced shrinkage

Nanozeolites doped photopolymer layers with reduced shrinkage

Real-time measurements of diffraction grating growth in photopolymer recording materials

New non-toxic holographic photopolymer material

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