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化学学报
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化学学报 ›› 2008, Vol. 66 ›› Issue (5): 563-566. 上一篇    下一篇

研究论文

四叔丁基萘酞菁铅化合物的非线性和光限幅特性

刘大军*，何兴权，高正国，段潜，周奋国   

  1. (长春理工大学化学与环境工程学院 长春 130022)
  • 投稿日期:2007-08-03 修回日期:2007-10-07 发布日期:2008-03-14
  • 通讯作者: 刘大军

Nonlinear and Optical Limiting Properties of Tetra tert-Butylnaphthalocyanine Lead

LIU Da-Jun* ,HE Xing-Quan, GAO Zheng-Guo ,DUAN Qian ,ZHOU Fen-Guo   

  1. (College of Chemical and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022)
  • Received:2007-08-03 Revised:2007-10-07 Published:2008-03-14
  • Contact: LIU Da-Jun

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被引次数

41 | 2

合成了四叔丁基萘酞菁铅[(t-Bu)4NcPb]化合物. 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. 应用调Q倍频ns/ps Nd:YAG脉冲激光系统, 在波长为532 nm下, 研究了化合物的非线性和光限幅特性. 测得化合物的非线性折射率n2和三阶非线性极化率χ(3)分别为2.42×10－11和7.91×10－12 esu, 通过计算得到分子极化率γ'为3.4×10－29 esu. 在透过率69%时限幅阈值为1522 mJ/cm2, 箝位值为553 mJ/cm2, 有效激发态与基态吸收截面比为3.16.

关键词: 非线性光学, Z-扫描, 萘酞菁

The compound of tetra tert-butylnaphthalocyanine lead was synthesized. The structure of the compound was characterized by means of elemental analysis, infrared spectrum and hydrogen nuclear magnetic resonance spectrum. A frequency-doubled Q switched Nd:YAG pulse laser system with ns/ps laser pulse was used for studying the nonlinear and optical limiting properties of the synthesized compound at the wavelength of 532 nm. The nonlinear refracting index, n2, and third-order nonlinear polarizability, χ(3) were determined to be 2.54×10－11 and 9.51×10－12 esu, respectively. The molecular polarizability of the compound γ' was calculated to be 3.3×10－29 esu. When visible light transmittance was 69%, the limiting threshold value was 1522 mJ/cm2, the clamp value was 553 mJ/cm2, and the ratio of absorption sectional area of effective excited state to that of ground state was 3.16.

Key words: nonlinear optics, Z-scan, naphthalocyanine