Phase-Shift Optimization in AA/PVA Photopolymers by High-Frequency Pulsed Laser
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Título: | Phase-Shift Optimization in AA/PVA Photopolymers by High-Frequency Pulsed Laser |
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Autor/es: | Puerto, Daniel | Gallego, Sergi | Francés, Jorge | Márquez, Andrés | Pascual, Inmaculada | Beléndez, Augusto |
Grupo/s de investigación o GITE: | Holografía y Procesado Óptico |
Centro, Departamento o Servicio: | Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías | Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía |
Palabras clave: | Polymers | Optical storage materials | Diffractive optics | Holography |
Área/s de conocimiento: | Física Aplicada | Óptica |
Fecha de publicación: | 21-ago-2020 |
Editor: | MDPI |
Cita bibliográfica: | Puerto D, Gallego S, Francés J, Márquez A, Pascual I, Beléndez A. Phase-Shift Optimization in AA/PVA Photopolymers by High-Frequency Pulsed Laser. Polymers. 2020; 12(9):1887. https://doi.org/10.3390/polym12091887 |
Resumen: | Photopolymers can be used to fabricate different holographic optical elements, although maximization of the phase-shift in photopolymers has been a challenge for the last few decades. Different material compositions and irradiation conditions have been studied in order to achieve it. One of the main conclusions has been that with continuous laser exposure better results are achieved. However, our results show for the first time that higher phase-shift can be achieved using a pulsed laser. The study has been conducted with crosslinked acrylamide-based photopolymers exposed with a pulsed laser (532 nm). The increment of the phase-shift between the pulsed laser and continuous laser exposure is 17%, achieving a maximum phase-shift of 3π radians and a refractive index shift of 0.0084 at the zero spatial frequency limit, where monomer diffusion does not take place. This allows this photopolymer to be used in large-scale manufacturing. |
Patrocinador/es: | The work was supported by the “Ministerio de Ciencia e Innovación” of Spain under projects FIS2017-82919-R and PID2019-106601RB-I00 and by the “Universidad de Alicante” under project UATALENTO18-10. |
URI: | http://hdl.handle.net/10045/108715 |
ISSN: | 2073-4360 |
DOI: | 10.3390/polym12091887 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3390/polym12091887 |
Aparece en las colecciones: | INV - GHPO - Artículos de Revistas |
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