PREPARATION AND SECOND-ORDER OPTICAL NONLINEARITY OF NOVEL PHENOXYSILICON NETWORKS BY SOL-GEL PROCESS  

作　　者：Xiao Huang Jian Wang Ling-zhi Zhang Zhi-gang Cai Zhao-xi Lianga 

机构地区：[1]Institute of Polymer Science, Zhongshan University, Guangzhou 510275, China Institute of Polymer Science, Zhongshan University, Guangzhou 510275, China Institute of Polymer Science, Zhongshan University, Guangzhou 510275, China State Key Lab of Ultrafast Laser Spectroscopy, Zhongshan University, Guangzhou 510275, China Institute of Polymer Science, Zhongshan University, Guangzhou 510275, China

出　　处：《Chinese Journal of Polymer Science》2001年第1期39-44,共6页高分子科学（英文版）

基　　金：国家自然科学基金

摘　　要：Four phenoxysilicon networks for nonlinear optical (NLO) applications were designed and prepared by an extended sol-gel process without additional H2O and catalyst. All poled polymer network films possess high second-order nonlinear optical coefficients (d(33)) Of 10(-7)similar to 10(-8) esu. The investigation of NLO temporal stability at room temperature and elevated temperature (120 degreesC) indicated that these films exhibit high d(33) stability because the orientation of the chromophores are locked in the phenoxysilicon organic/inorganic networks.Four phenoxysilicon networks for nonlinear optical (NLO) applications were designed and prepared by an extended sol-gel process without additional H2O and catalyst. All poled polymer network films possess high second-order nonlinear optical coefficients (d(33)) Of 10(-7)similar to 10(-8) esu. The investigation of NLO temporal stability at room temperature and elevated temperature (120 degreesC) indicated that these films exhibit high d(33) stability because the orientation of the chromophores are locked in the phenoxysilicon organic/inorganic networks.

关 键 词：phenoxysilicon networks sol-gel process azobenzene chromophore stilbene chromophore second order optical nonlinearity 

分 类 号：O63[理学—高分子化学]