系列羟基苯基卟啉化合物三阶非线性光学特性  

Third-order Optical Nonlinearities of a Series of Hydroxylphenyl Porphyrins

作　　者：李新国[1] 裴松皓[1] 王芙香[1] 彭慰先[1] 石莹岩[2] 王杏乔[2] 宋瑛林[3] 

机构地区：[1]吉林大学物理学院,长春130021 [2]吉林大学化学学院,长春130021 [3]哈尔滨工业大学应用物理系,哈尔滨150001

出　　处：《吉林大学学报（理学版）》2005年第6期813-817,共5页Journal of Jilin University:Science Edition

基　　金：国家自然科学基金(批准号:20071014)

摘　　要：用Z扫描方法测量了系列羟基苯基卟啉化合物的非线性折射率n2和反饱和吸收系数β,由此算出了三阶非线性极化率(χ3),并分析了分子结构对其三阶非线性光学性质的影响.实验结果表明,它们具有大的反饱和系数和三阶非线性折射率,并且取代基数目和取代位置对实验结果有明显的影响.The nonlinear refraction indices n2 and the reverse saturation absorption （RSA） coefficients β of a series of hydroxylphenyl porphyrins were measured by means of single beam Z-scan technique with a 8 ns laser pulse at 532 nm from which third-order nonlinear susceptibilities X^（3） of the samples were calculated. The hydroxylphenyl porphyrins have a large value of the reverse saturation absorption and a large cubic nonlinear refractivity. The effects of molecular structures on the third-order nonlinear optical properties were discussed. The experimental results show that the effects of different numbers and different positions of the substituents on the nonlinear refractivity of the porphyrins are evident.

关 键 词：卟啉 羟基苯基卟啉 Z扫描 三阶非线性 

分 类 号：O43[机械工程—光学工程]