高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (4): 616.

• 论文 • 上一篇    下一篇

系列新推拉型多环共轭分子二阶非线性光学性质的理论研究

付伟1, 封继康1, 任爱民1, 孙秀云1, 金宏威1, 王江洪2, 沈玉全2   

  1. 1. 吉林大学理论化学研究所, 理论化学计算国家重点实验室, 超分子结构及谱学开放实验室, 长春 130023;
    2. 中国科学院感光化学研究所, 北京 100101
  • 收稿日期:1999-05-27 出版日期:2000-04-24 发布日期:2000-04-24
  • 通讯作者: 封继康(1939年出生),男,教授,博士生导师,从事量子化学研究.
  • 基金资助:

    国家自然科学基金(批准号:29890210;29873016)

Theoretical Studies on Second-order Nonlinear Optical Properties of a Series of Novel Push pull Polycyclic Conjugated Molecules

FU Wei1, FENG Ji-Kang1, REN Ai-Min1, SUN Xiu-Yun1, JIN Hong-Wei1, WANG Jiang-Hong2, SHEN Yu-Quan2   

  1. 1. Instituteof Theoretical Chemistry, National Laboratory of Theoreticaland Computational Chemistry, Key Laboratory for Supr amolecular Structureand Spectroscopy, Jilin University, Changchun 130023, China;
    2. Instituteof Photographic Chemistry, Academia Sinica, Beijing 100101, China
  • Received:1999-05-27 Online:2000-04-24 Published:2000-04-24

摘要: 在AM1和ZINDO方法基础上,按完全态求和(SOS)公式编制了计算分子二阶非线性光学系数βijk和βμ的程序,研究了一系列新推拉型多环共轭分子的结构、光谱和二阶非线性光学系数β(-2ω,ω,ω)和β(0,0,0).考察了分子共轭链长、分子骨架和给电子取代基对βμ的影响,并设计了具有最大βμ的新型非线性光学材料分子.

关键词: 非线性光学材料, 分子设计, 二阶非线性光学系数

Abstract: On the basis of AM1 and ZINDO, according to the sum over state expression, we devised the program for calculating the nonlinear second order optical susceptibilities βijk and βμ . The structure, electron spectra and β(-2ω, ω, ω), β (0, 0, 0) of a series of novel pull-push polycyclic conjugated molecules have been studied. The influence of molecular conjugated length, molecular backbone, donor on the β was examined. At last, we designed a NLOmaterial with the biggest βμ .

Key words: Nonlinear optical materials, Molecular design, Second-order nonlinear optical susceptibility

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