Optical storage properties in cast films of an azopolymer

AUTOR(ES)

Neves, Ubaldo Martins das, Santos Junior, David Sotero dos, Giacometti, José Alberto, Zílio, Sergio Carlos, Misoguti, Lino, Balogh, Débora Terezia, Oliveira Junior, Osvaldo Novais de, Mendonça, Cleber Renato

FONTE

Materials Research

DATA DE PUBLICAÇÃO

2003-06

RESUMO

In this paper we discuss the properties of optically induced birefringence in DR19-MDI cast films that may be used in optical storage applications. The selection of DR19-MDI cast films was based on a comparative study of optical storage properties of Langmuir-Blodgett (LB) films from various azopolymers. DR19-MDI possesses a high residual fraction of optical birefringence and good environmental stability, which was corroborated by the data from optical storage experiments. DR19-MDI cast films maintain a reasonable level of birefringence after the initial decay due to chromophore relaxation, thus making them promising candidates for optical storage devices.

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