用于集成光学的卟啉接枝SiO2复合材料及其三阶光学非线性特性研究【毕业论文】.doc

本科毕业设计 （20 届） 用于集成光学的卟啉接枝SiO2复合材料及其三阶光学非线性特性研究 所在学院 专业班级 电子信息科学与技术 学生姓名 学号 指导教师 职称 完成日期 年 月 摘　要 【摘要】本课题对非线性光学材料的特性及其在光学领域的应用，卟啉物质的一般的性质及用溶胶-凝胶技术制备材料的研究概况做了论述。采用接枝法，使卟啉配合物Meso-四(4 -羧基苯基)卟啉铜(Cu(II)–TCPP，非水溶性)中的羧基-COOH与-氨基丙基三乙氧基硅烷(NH2(CH2)3Si(OC2H5)3,KH550)中的氨基-NH2发生化学连接，成功的把卟啉接枝到KH550中，随着KH550中乙氧基-OC2H5的水解与聚合反应的进行，将不同浓度的反应产物与γ-(2,3-环氧丙氧基)丙基三甲氧基硅烷(CH2CHCH2O(CH2)3Si(OCH3)3,KH560) 相复合，形成卟啉接枝到SiO2无机网络中的有机-无机新型复合材料。用红外光谱对Cu(II)–TCPP与KH550接枝的产物进行表征，紫外可见吸收光谱对Cu(II)–TCPP于复合体系中的分子状态进行表征，用Z扫描方法研究不同Cu(II)–TCPP掺杂浓度的复合材料的非线性光学性质。 【关键词】Meso-四(4-羧基苯基)卟啉铜;接枝;有机-无机复合材料；三阶非线性 Abstract 【ABSTRACT】A survey of general properties of porphyrin, the application of nonlinear materials on optical limiter, and the function of gel and ormosil acting as the host material of organic molecules for fabricating Guest-Host material were elucidated.Copper Metalloporphyrin was bonded to 3-aminopropltriethoxysilane (NH2(CH2)3Si(OC2H5)3, KH550) by the chemical reaction between the carboxyl group of Cu(II) meso-Tertra(4-carboxyphenyl)porphine (Cu(II)–TCPP) and amino-group of KH550. The Copper Metalloporphyrin was connected to gel network as the hydrolysis and condensation of the product.The reacted product of different concentrations was hybridized with 3-glycidoxypropltrimethoxysilane (CH2OCHCH2O(CH2)3Si(OCH3)3, KH560) using sol-gel processing to form sol-gel organinc-inorganic hybrid materials, which had good physical-chemical and optical properties. The doping concentration of Copper Metalloporphyrin in the monomer was greatly enhanced by the linkage of Copper Metalloporphyrin to the matrix. The cross-linkage of Cu(II)–TCPP and KH550 was confirmed with FT-IR spectra. The states of Metalloporphyrin molecules were investiagated by UV/ VIS spectra. The Nonlinear optical properties of samples were studied by Z-scan technique using Ti:Sapphire femto-second laser pluses. The nonlinear refactive inde