Pyrromethene dye and non-redox initiator system in a hydrophilic binder photopolymer

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Title: Pyrromethene dye and non-redox initiator system in a hydrophilic binder photopolymer
Authors: Ortuño, Manuel | Márquez, Andrés | Gallego, Sergi | Neipp, Cristian | Fernandez-Varo, Helena
Research Group/s: Holografía y Procesado Óptico
Center, Department or Service: Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía
Keywords: Holography | Holographic recording materials | Photopolymers
Knowledge Area: Óptica | Física Aplicada
Date Created: 10-Nov-2005
Issue Date: Oct-2007
Publisher: Elsevier
Citation: ORTUÑO SÁNCHEZ, Manuel, et al. "Pyrromethene dye and non-redox initiator system in a hydrophilic binder photopolymer". Optical Materials. Vol. 30, Issue 2 (Oct. 2007). ISSN 0925-3467, pp. 227-230
Abstract: The bipyrromethene–BF2 complexes are dyes derived from pyrromethene. They have been studied in photopolymers with hydrophobic binder, where the dye can act as sensitizer and initiator at the same time. We introduce pyrromethene in a hydrophilic binder photopolymer to change the redox initiation system in photopolymers with xanthene dyes. In this way we avoid the use of triethanolamine as the redox initiator, typical in hydrophilic binder photopolymers, which is related to the existence of diffusion phenomena in the recorded hologram. Using a pyrromethene derived dye and 4,4′-azobis(4-cyanovaleric acid) as initiator we have obtained photopolymer layers with high thickness, good optical quality, absorption levels very close to xanthene dyes, and with the capability to record diffraction gratings with low noise level.
Sponsor: This work was supported by "Ministerio de Educación y Ciencia" (Spain), under Projects FIS2005-05881-C02-01 and FIS2005-05881-C02-02.
ISSN: 0925-3467 (Print) | 1873-1252 (Online)
DOI: 10.1016/j.optmat.2006.10.029
Language: eng
Type: info:eu-repo/semantics/article
Peer Review: si
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Appears in Collections:INV - GHPO - Artículos de Revistas

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