【作者】 王舫；

【导师】 段潜； 刘大军；

【作者基本信息】 长春理工大学 ， 应用化学， 2002， 硕士

【摘要】 合成了三种烷氧基取代的金属酞菁铅类光限幅材料，利用元素分析、红外光谱、核磁共振氢谱等方法，验证了化合物的分子结构。将它们分别掺入聚合物单体(MMA)中，制备出具有非线性光学性质的复合材料。测试了它们在不同状态下的紫外-可见光谱(200～800nm)，发现它们具有一定的非线性光限幅效应。 用波长为532nm的YAG倍频调Q脉冲激光以8ns的脉冲速率测试复合材料的反饱和吸收的光限幅特性，讨论了各种因素对材料的三阶非线性光学性质及反饱和吸收光限幅特性的影响，并对它们的反饱和吸收的光限幅现象进行了理论拟合。更多还原

【Abstract】 Three derivatives of alkoxy phthalocyanine Pb were synthesized as optical limiting materials. The structures of products were characterized by means of IR,HNMR spectra and elementary analysis. And then , the phthalocyanine Pb / polymethy methacrylate(PMMA) were prepared. The absorption spectrum of these composite materials between 200-800nm were measured to determine their Q-bands ,and they were found having good third nonlinear optical properties perhaps .Then the nonlinear reverse saturable absorption measurements of composite materials were performed with a frequency-doubled Q switched Nd:YAG laser with 8ns laser pulse at 532nm. The factors that affect the performance of reverse saturable absorption and optical limiting of the materials were discussed. A phenomenological model is used to describe optical limiting phenomena.更多还原