RESUMEN:Este trabajo presenta los resultados obtenidos después de almacenar redes holográficas por transmisión con una frecuencia espacial de 954 líneas/mm y 2663 líneas/mm, en un material basado en PVA/AA. A la composición del material se le ha incorporado un agente acortador de cadenas, el 4,4´-azobis(4-cyanopentanoic acid) (ACPA) para mejorar la respuesta del material a la resolución espacial. Además, se ha aplicado un proceso de curado a las redes almacenadas para fijar el rendimiento en difracción y que no disminuya con el paso del tiempo.Palabras clave: Fotopolímeros, Redes Holográficas por Transmisión, Agente Acortador de Cadenas. ABSTRACT:This paper presents the results obtained after storing holographic transmission gratings with a spatial frequency of 954 lines/mm and 2663 lines/mm in a material based on PVA/AA. A chain transfer agent, the 4,4'-azobis (4-cyanopentanoic acid) (ACPA) has been incorporated in the material composition to improve the response to the spatial resolution. Furthermore, a curing process has been applied to the stored gratings in order to fix the diffraction efficiency over time.
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