Enhanced second order non-linear optical properties of silica sol-gel thin films through photo-induced poling

被引：0

作者：

Abbas, B. ^{[1
]}

Mitchell, G.R. ^{[1
]}

机构：

[1] Polymer Science Centre, Department of Physics, University of Reading, Reading RG6 6AF

来源：

Journal of Sol-Gel Science and Technology | 1999年 / 13卷 / 1-3期

关键词：

Gelation - Isomerization - Nonlinear optics - Optical communication - Silica - Thin films;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Sol-gel derived inorganic materials are of interest as hosts for non-linear optically active guest molecules and they offer particular advantages in the field of non-linear optics. Orientationally ordered glasses have been prepared using a sol-gel system based on tetramethoxysilane, methyltrimethoxysilane and a non-linear optical chromophore Disperse Red 1. The novel technique of photo-induced poling was used to generate enhanced levels of polar order. The level of enhancement is strongly dependent on the extent of gelation and an optimum preparation time of ∼100 h led to an enhancement factor of ∼5. Films prepared in this manner exhibited a high stability of the polar order.

引用

页码：647 / 650

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