Resumo

MARANON-RUIZ, Virginia F. et al. Películas de silicio dopadas con cristal líquido y rojo de metilo que presentan propiedades ópticas no lineales con potencial aplicación en optoelectrónica. Superf. vacío [online]. 2010, vol.23, n.4, pp.15-20. ISSN 1665-3521.

In this work we present the synthesis of SiO₂ sol-gel hybrid materials doped with azo-dye methyl red, liquid crystal 4'-n-pentyl-4-cyanobiphenyl and surfactant Triton X-100. The composite materials were used to prepare silica films into the sandwich glass-cell. Nonlinear refraction index changes on these films were studied with the Z-scan technique. The ability of these films to act as a nonlinear phase contrast filter is demonstrated experimentally.

Palavras-chave : Sol-Gel; Z-scan technique; Nonlinear optical properties.

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