Diffraction efficiency study of holographic gratings in dichromated poly(vinyl alcohol) NiCl 2 •6H 2 O doped

Fontanilla-Urdaneta, R.; Hernández‐Garay, M. P.; Olivares‐Pérez, A.; Páez-Trujillo, G.; Fuentes‐Tapia, I.

doi:10.1117/12.761980

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…Grupos de investigación de todo el mundo utilizan todos sus esfuerzos en obtener un material adecuado para este propósito [17][18][19]. Es importante conseguir un material con una alta modulación de índice de refracción y una alta sensibilidad energética con una buena calidad óptica.…”

Section: Introductionunclassified

Influence of ACPA on the stability of holographic transmission gratings stored in photopolymers

Fernandez-Varo¹,

Rosillo²,

Ortuño³

et al. 2013

Opt. Pura Apl.

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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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Section: Introductionunclassified

Influence of ACPA on the stability of holographic transmission gratings stored in photopolymers

Fernandez-Varo¹,

Rosillo²,

Ortuño³

et al. 2013

Opt. Pura Apl.

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show abstract

“…Research groups around the world are concentrating all their efforts on obtaining a suitable material for this purpose [6][7][8][9][10]. It is important to obtain a material with a high refractive index modulation and high sensitivity as well as good optical quality.…”

Section: Introductionmentioning

confidence: 99%

Holographic grating stability: influence of 4,4′-azobis (4-cyanopentanoic acid) on various spatial frequencies

et al. 2013

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This paper presents the results obtained when holographic gratings were stored with a spatial frequency of 954 and 2663 lines∕mm in transmission geometry and 4600 lines∕mm in reflection geometry in a polyvinyl alcohol/acrylamide-based material. Photopolymers are materials that give good results at low frequencies, but their diffraction efficiency (DE) decreases at high frequencies. A chain transfer agent, 4,4 ′ -azobis (4-cyanopentanoic acid) (ACPA) was incorporated in the material composition to improve spatial resolution. Furthermore, a curing process was applied to the stored gratings in order to maintain the DE stable over time. The DE and shrinkage for symmetric holographic transmission and reflection gratings were measured to evaluate their quality and quantify the improvement produced by ACPA.

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Real-time holographic gratings modulate with voltage by different thickness film

Fontanilla-Urdaneta

2011

Opt. Eng

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Diffraction efficiency study of holographic gratings in dichromated poly(vinyl alcohol) NiCl 2 •6H 2 O doped

Cited by 3 publications

References 17 publications

Influence of ACPA on the stability of holographic transmission gratings stored in photopolymers

Influence of ACPA on the stability of holographic transmission gratings stored in photopolymers

Holographic grating stability: influence of 4,4′-azobis (4-cyanopentanoic acid) on various spatial frequencies

Real-time holographic gratings modulate with voltage by different thickness film

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