文献类型：期刊文献

英文题名：Nonlinear refraction in photo-induced anisotropic states of azo-dye containing materials

作者：Fan, Sheng-fa[1];Luo, Duan-bin[1]

机构：[1]E China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China

年份：2011

卷号：122

期号：2

起止页码：142

外文期刊名：OPTIK

收录：;EI(收录号：20110313587082);WOS:【SCI-EXPANDED(收录号:WOS:000288527900014)】；

语种：英文

外文关键词：Azo-dye doped material; Z-scan; Photo-induced anisotropy

摘要：The optical anisotropic states in the azo-dye Disperse Red 13 doped poly(methyl methacrylate) polymeric film are induced by polarized light and the nonlinear refractive index in these states are studied by the Z-scan technique. It is found that the n(2) of the sample can be controlled by changing both the polarization direction and the intensity of the 514 nm light. Photo-induced isomerization and reorientation of azo chromophores in polymer matrices are used to explain the results. (C) 2010 Elsevier GmbH. All rights reserved.