Effects of processing on all-optical poling characteristics of guest-host azo-dye polymer thin films
✍ Scribed by Tan, Jing ;Li, Ai-Dong ;Fan, Xi-Zhi ;Liu, Wen-Chao ;Xu, Zu-Xun ;Lin, Yang ;Wang, Hui-Tian ;Wu, Di ;Ming, Naiben
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 484 KB
- Volume
- 204
- Category
- Article
- ISSN
- 0031-8965
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✦ Synopsis
Abstract
Several kinds of azo‐dye polymer films of the guest‐host system were prepared by the spin‐coating method. Four disperse red (DR) dyes of DR1, DR19, DR54 and DR73 were chosen as second order nonlinear optical active chromophores with polymer matrixes such as poly (methyl methacrylate) PMMA or polycarbonate (PC). The processing conditions such as heat‐treatment, substrate, and film storage condition on all‐optical poling characteristics of azopolymers have been investigated. It is found that the second harmonic generation intensity is very sensitive to the chromophores and processing parameters. Some explanations have been proposed. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)