Optical storage properties in cast films of an azopolymer

Materials Research

Ubaldo Martins Das Neves²  David Sotero Dos Santos Junior²  José Alberto Giacometti¹  Sergio Carlos Zílio²  Lino Misoguti²  Débora Terezia Balogh²  Osvaldo Novais De Oliveira Junior²  Cleber Renato Mendonça² 

[1] ,Instituto de Física de São Carlos Departamento de Física e Ciência dos Materiais São Carlos SP ,Brazil

关键词: azopolymers;    birefringence;    optical storage;   

DOI  :  10.1590/S1516-14392003000300016

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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