We present an investigation oil new organic mixtures for high resolution holographic data recording. Reflection holograms were obtained via blue laser light irradiation (lambda = 457.9 nm) on photo-sensitive acrylate and 1-chloro-hexane or 1-bromo-hexane based mixtures. These haloalkanes were selected oil the basis of their ability to originate phase separation from acrylate during the photo-polymerization process and for their lower refractive index with respect to the used poly-acrylate monomer. This last property allowed the achievement of a good dielectric contrast between polymer and haloalkane-rich layers. The recorded holograms have been investigated and optically characterized focusing on holographic data storage requirements. Finally, the results were compared with those concerning holographic polymer dispersed liquid crystal, already proposed for optical data storage applications.

Haloalkane-based polymeric mixture for high density optical data storage / Castagna, R; Vita, Francesco; Lucchetta, Daniele Eugenio; Criante, L; Greci, L; Simoni, Francesco. - In: OPTICAL MATERIALS. - ISSN 0925-3467. - 30:(2008), pp. 1878-1882. [10.1016/j.optmat.2007.12.011]

Haloalkane-based polymeric mixture for high density optical data storage

VITA, Francesco;LUCCHETTA, Daniele Eugenio;SIMONI, Francesco
2008-01-01

Abstract

We present an investigation oil new organic mixtures for high resolution holographic data recording. Reflection holograms were obtained via blue laser light irradiation (lambda = 457.9 nm) on photo-sensitive acrylate and 1-chloro-hexane or 1-bromo-hexane based mixtures. These haloalkanes were selected oil the basis of their ability to originate phase separation from acrylate during the photo-polymerization process and for their lower refractive index with respect to the used poly-acrylate monomer. This last property allowed the achievement of a good dielectric contrast between polymer and haloalkane-rich layers. The recorded holograms have been investigated and optically characterized focusing on holographic data storage requirements. Finally, the results were compared with those concerning holographic polymer dispersed liquid crystal, already proposed for optical data storage applications.
2008
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11566/27689
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