Ciara E. Close
University College Dublin
37 Papers
364 Citations
Ciara E. Close is an academic researcher from University College Dublin. The author has contributed to research in topics: Grating & Holographic grating. The author has an hindex of 11, co-authored 37 publications. Previous affiliations of Ciara E. Close include National University of Ireland.
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Papers
Improvement of the spatial frequency response of photopolymer materials by modifying polymer chain length
TL;DR: In this article, the spatial frequency response of an acrylamide/polyvinyl alcohol-based photopolymer is improved through the addition of a chain transfer agent (CTA), sodium formate.
Effects of absorption and inhibition during grating formation in photopolymer materials
TL;DR: In this paper, the authors examined the kinetic behavior involved within the photopolymer material during recording to obtain a clearer picture of the photochemical processes present, and the results support their description of the inhibition process in an acrylamide-based photopolymers and can be used to predict behavior under certain conditions.
Monomer diffusion rates in photopolymer material. Part I. Low spatial frequency holographic gratings
TL;DR: In this paper, a detailed analysis of the diffraction processes taking place for large-period gratings is provided, combined with those in Part II, provide unambiguous evidence that the monomer diffusion rate in a commonly used acrylamide polyvinyl alcohol-based material is of the order of 10 �10 cm 2 =s.
Optical response of photopolymer materials for holographic data storage applications.
TL;DR: The recent development of the Non-local Polymerisation Driven Diffusion model is discussed and simple first-order analytic expressions describing the spatial frequency response of photopolymer materials are developed.
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Monomer diffusion rates in photopolymer material. Part II. High-frequency gratings and bulk diffusion
TL;DR: In this paper, the diffusion constants of a number of materials (i.e., acrylamide, polyacrylamides, water, propanol, and acetone) within a photosensitive layer are measured under different conditions.