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以γ 缩水甘油氧丙基三甲氧基硅烷 (KH5 6 0 )作中间体 ,用溶胶 凝胶 (Sol Gel)法合成了含对硝基偶氮苯胺 (DO3)生色团的新型键合型有机 /无机复合非线性光学 (NLO)材料 ,在这种有机生色团与无机玻璃键合形成的交联网络结构中 ,无机玻璃的刚性三维结构和优良的高温稳定性能有效抑制NLO生色团的极化松弛 .二次谐波信号 (SHG)测量表明 ,合成的键合型聚合物膜的二阶非线性光学系数 (d33)值达 5 79× 10 -7esu ,NLO稳定性也较好 ;在室温下放置 90天后 ,其d33 值能维持初始值的 93 5 % ;在 10 0℃下放置 30 0min后 ,其d33 值仍能维持初始值的 6 0 %
A new type of bonding organic compound containing p - nitroazobenzidine (DO3) chromophore was synthesized by sol - gel method using γ - glycidoxypropyltrimethoxysilane (KH560) as an intermediate. / Inorganic composite nonlinear optical (NLO) material. In the cross-linked network structure formed by the bond between the organic chromophore and the inorganic glass, the rigid three-dimensional structure of the inorganic glass and the excellent high temperature stability can effectively inhibit the NLO chromophore The second harmonic signal (SHG) measurements show that the second-order nonlinear optical coefficient (d33) of the bonded polymer films reaches 5 79 × 10 -7esu and the stability of NLO is good. After 90 days at room temperature, the d33 value can maintain 93.5% of the initial value. After being kept at 100 ° C for 30 minutes, the d33 value can still maintain 60% of the initial value.