Diacetone acrylamide-based non-toxic holographic photopolymer

D. Cody; I. Naydenova; E. Mihaylova

doi:10.1117/12.923116

4 May 2012 Diacetone acrylamide-based non-toxic holographic photopolymer

D. Cody, I. Naydenova, E. Mihaylova

Proceedings Volume 8429, Optical Modelling and Design II; 84291B (2012) https://doi.org/10.1117/12.923116
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

A new low-toxicity diacetone acrylamide-based photopolymer is developed and characterized. The environmentallycompatible photopolymer has been modified with the inclusion of glycerol. The incorporation of glycerol results in a uniform maximum refractive index modulation for recording intensities in the range of 1-20 mW/cm². This may be attributed to glycerol's nature as a plasticizer, which allows for faster diffusion of un-reacted monomer within the grating during holographic recording. An optimum recording intensity of 0.5 mW/cm² is observed for exposure energies of 20- 60 mW/cm². The modified photopolymer achieves a refractive index modulation of 2.2×10^-3, with diffraction efficiencies up to 90 % in 100 μm layers. The photopolymer layers containing glycerol have improved stability and optical quality.

Citation Download Citation

D. Cody, I. Naydenova, and E. Mihaylova "Diacetone acrylamide-based non-toxic holographic photopolymer", Proc. SPIE 8429, Optical Modelling and Design II, 84291B (4 May 2012); https://doi.org/10.1117/12.923116

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