7 February 2011 Holographic recording aspects of high-resolution Bayfol HX photopolymer
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Abstract
We have been developing a new class of recording materials for volume holography, offering the advantages of full color recording and depth tuning without any chemical or thermal processing, combined with low shrinkage and detuning. These photopolymers are based on the two-chemistry concept in which the writing chemistry is dissolved in a preformed polymeric network. This network gives the necessary mechanical stability to the material prior to recording. In this paper we describe several aspects of holographic recording into Bayfol® HX which are beneficial for its effective use and discuss them within a more elaborate reaction-diffusion model. Inhibition phenomena and the influence of precure are studied within this model and are investigated experimentally for single hologram recording and angular multiplexed hologram recordings. Also the dark reaction after the exposure period and the minimum allowable waiting time for full hologram formation are addressed. The proper understanding of these phenomena is important for the optimal usage of these new materials, in for example step-and-repeat mass production of holograms.
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Horst Berneth, Friedrich K. Bruder, Thomas Fäcke, Rainer Hagen, Dennis Hönel, David Jurbergs, Thomas Rölle, Marc-Stephan Weiser, "Holographic recording aspects of high-resolution Bayfol HX photopolymer", Proc. SPIE 7957, Practical Holography XXV: Materials and Applications, 79570H (7 February 2011); doi: 10.1117/12.876202; https://doi.org/10.1117/12.876202
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