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化学学报
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化学学报 ›› 2010, Vol. 68 ›› Issue (01): 1-6.    下一篇

研究论文

三苯胺-吡啶衍生物的三光子吸收及光限幅特性

  

  1. 1. 东南大学化学化工学院
    2.
  • 投稿日期:2009-06-12 修回日期:2009-09-14 发布日期:2010-01-20
  • 通讯作者: 钱鹰 E-mail:yingqian@seu.edu.cn

The Three-photon Absorption and Optical Power Limiting of Triphenylamine-Pyridine

QIAN Ying,   

  • Received:2009-06-12 Revised:2009-09-14 Published:2010-01-20
  • Contact: QIAN Ying E-mail:yingqian@seu.edu.cn

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1535

被引次数

11

合成了3个三苯胺-吡啶衍生物4-乙烯基吡啶-4-(N,N-二苯胺基)苯(PPAB)，三[4-(4-吡啶乙烯基)苯]胺(TPPA)和4-(对-甲基-乙烯基吡啶碘盐)-4’-(N,N-二苯胺基)苯(PBPI)，研究了它们在二氯甲烷中的线性吸收和单光子荧光行为。用飞秒Ti:Sapphire 激光器测定了它们的三光子吸收性质。采用非线性透过率法测得3个化合物在1310nm三光子吸收截面分别1.91×10-79cm6s2, 3.46×10-79cm6s2, 3.64×10-79cm6s2，它们具有很强的光限幅效应。在二氯甲烷中PPAB, PBPI and TPPA的三光子荧光发射峰分别位于648nm,625nm, 696nm.

关键词: 光限幅

Three compounds: 4-vinylpyridine-4-(N,N-diphenylamino)benzene(PPAB), Tris[4- (4-Pyridylethenyl)phenyl]amine (TPPA), 4-(N,N-diphenylamine)benzene -vinyl -1-methyl- pyridinium iodide(PBPI), were synthesized and characterized. The absorption and one-photon fluorescence properties have been investigated . Three-photon upconversion fluorescence spectra of these molecules were measured using a femtosecond Ti:sapphire. Large optical power limiting has also been demonstrated for the three compounds. Their three-photon absorption coefficients obtained by nonlinear transmission method are 1.91×10-79cm6s2, 3.46×10-79cm6s2, 3.64×10-79cm6s2 , respectively.

Key words: optical power limiting