Document Type
Article
Rights
Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence
Disciplines
Optics, Polymer science
Abstract
Sensitivity of holographic recording materials to the relative humidity (RH) of the environment often restricts their use in fabrication of holographic optical elements and other applications. It is important to develop materials with little or no sensitivity to humidity. In this paper the humidity response of transmission gratings recorded in an acrylamide-based photopolymer containing N-phenylglycine (NPG) as a photoinitiator is studied at RH = 20 – 90 %. The hologram is found to be completely insensitive to humidity at RH below 70 % and its diffraction efficiency remains constant. A decrease in diffraction efficiency is observed at RH = 80 – 90 % but this decrease is fully reversible, demonstrating quantitatively the NPG photopolymer’s excellent resistance to humidity.
DOI
https://doi.org/10.1016/j.optmat.2014.09.012
Recommended Citation
Mikulchyk, T., Martin, S., Naydenova, I. (2014). Investigation of the Sensitivity to Humidity of an Acrylamide-based Photopolymer Containing N-phenylglycine as a Photoinitiator. Optical Materials (2014) v. 37,pp. 810-815. doi:10.1016/j.optmat.2014.09.012
Funder
Irish Research Council Embark Initiative
Publication Details
Optical Materials (2014) v. 37, p. 810-815.