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四芘取代自由卟啉的三阶非线性光学性质研究

Synthesis and Third - order Nonlinear Optical Property of Novel Porphyrin Bearing Four Pyrenyl Groups at the Meso - positions
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摘要 合成了一种芘取代的自由卟啉,配制了其浓度为10-4mol/L的三氯甲烷溶液.采用Z-扫描技术测试了该样品溶液在波长为1064 nm,脉宽为20 ps条件下的非线性光学特性.结果表明,与单体芘和卟啉相比,芘取代的自由卟啉在皮秒光强下既存在非线性折射,又存在非线性吸收.其中非线性吸收性质表现出双光子吸收,吸收系数为7.377×10-13 m/W.结果表明,该共轭体系在1064 nm的三阶非线性性质明显优于普通卟啉和芘的单体,这为开发和探索新型非线性光学材料及研究卟啉的功能提供一条新的参考途径. A novel porphyrin bearing four pyrenyl groups at the meso-positions is synthesized.The third-order nonlinear optical properties of it were investigated by Z-scan technique with 20 ps pulse width at 1064 nm in CHCl3 solution,showing enhanced nonlinear optical absorption effects compared with the porphyrin and pyrene monomers.
出处 《济宁学院学报》 2011年第3期20-23,共4页 Journal of Jining University
基金 济宁学院青年科研基金项目(2009QNKJ06)
关键词 非线性光学性质 Z-扫描技术 卟啉 nonlinear optical properties Z-scan technique porphyrin
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