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Proceedings Paper

Holographic transmission gratings stored in a hydrogel matrix
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Paper Abstract

The development and optimization of photopolymers in which time-stable holographic grating can be stored when the material is immersed in an aqueous medium represent a challenge at present. In this sense, the aim of this work was the fabrication of unslanted transmission gratings in a hydrogel matrix which incorporates in its molecular structure a monomer (2-Methacryloyloxyethyl phosphorylcholine) that can act as an anti-fouling agent. The dependence of the diffraction efficiency on the thickness of the hydrogel matrix and the stability of the transmission gratings immersed in water were also studied. An increment in the diffraction efficiency up to 47 % was observed after a washing stage. After two days immersed in water, the holograms showed high stability even though the diffraction efficiency decreased to 37%. The optical parameters were obtained by fitting procedure through Kogelnik’s coupled wave theory.

Paper Details

Date Published: 1 April 2020
PDF: 8 pages
Proc. SPIE 11367, Photosensitive Materials and their Applications, 113670B (1 April 2020); doi: 10.1117/12.2555362
Show Author Affiliations
Manuel G. Ramírez, Univ. de Alicante (Spain)
María Isabel Lucío, Univ. Politècnica de València (Spain)
M. Morales-Vidal, Univ. de Alicante (Spain)
Augusto Beléndez, Univ. de Alicante (Spain)
María-José Bañuls, Univ. Politècnica de València (Spain)
Ángel Maquieira, Univ. Politècnica de València (Spain)
Inmaculada Pascual, Univ. de Alicante (Spain)

Published in SPIE Proceedings Vol. 11367:
Photosensitive Materials and their Applications
Robert R. McLeod; Inmaculada Pascual Villalobos; Yasuo Tomita; John T. Sheridan, Editor(s)

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