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中国科学院大学学报 ›› 2000, Vol. 17 ›› Issue (1): 36-42.

• 论文 • 上一篇    下一篇

复杂晶体的化学键和非线性光学效应

张思远, 薛冬峰   

  1. 中国科学院长春应用化学研究所稀土化学和物理开放实验室, 长春, 130022
  • 收稿日期:2000-11-13 发布日期:2000-01-15
  • 作者简介:张思远,男,1940年1月生,研究员,博士生导师
  • 基金资助:

    国家自然科学基金(29871029);长春应用化学中心资助

Chemical Bond of Complex Structure Crystals and Nonlinear Optical Effect

Zhang Si-yuan, Xue Dong-feng   

  1. Laboratory of Rare Earth of Chemistry and Physics, Changchun Institute of Applied chmistry, Chinese Academy of Sciences, Changchun 130022
  • Received:2000-11-13 Published:2000-01-15

摘要:

系统地提出了复杂晶体化学键的介电理论方法,计算了一些非线性晶体的二阶极化系数dij。计算结果和实验值符合很好,同时表明这种方法不仅可应用于复杂晶体,还提供了材料设计的某些依据。

关键词: 复杂晶体, 化学键, 非线性光学系数dij

Abstract:

A theoretical method on constituent chemical bonds of complex crystals based on the dielectric theory of solids has been proposed systematically, the independent nonlinear optical tensor co-efficients dij of some typical NLO cxystals with complex structures have been quantitatively calculated. Theoretical values agree with experimental data satisfactorily.This work shows that our method has a good application in dealing with optical nonlinearities of complex crystals, it also would be useful in designing or modifying new NLO crystal materials.

Key words: complex crystals, chemical bond, nonlinear optical coefficient dij