主链含过渡金属（Pd和Ni）多炔聚合物的三阶非线性光学响应  

3rd Nonlinear Optical Response of Polyyne-ploymers Containing Transition Metals(Pd or Ni)

作　　者：李士杰 吴哲夫 张凌军 杨慕杰 司金海[1] 赵江 王友贵[1] 叶佩弦[1] 

机构地区：[1]浙江大学光科系,中国科学院物理研究所

出　　处：《中国激光》1995年第11期861-864,共4页Chinese Journal of Lasers

基　　金：国家自然科学基金

摘　　要：描述了主链含过渡金属（Ｐｄ或Ｎｉ）的多炔聚合物的三阶非线性光学特性。通过四波混频（ＤＦＷＭ）实验，发现其具有高的三阶非线性光学系数，得到｜ｘ（３）｜≌３×１０－１３ｅｓｕ，分子超极化率ｙ≌５×１０－３１ｅｓｕ，并且在可见和红外区域有较小的吸收系数，这使之成为一种具有许多潜在用途的非线性光学新材料。A large number of polymeric materials have been investigated for their large third-order nonlinear susceptibility. Here a series of new nonlinear optical polyyne-polymers containing Pd or Ni in the main chain are described. It is decovered that the metal polyynepolymers are showed to have large X(3) value (X(3) ≌ 3 X 10-13 esu, γ ≌ 5 X 10-31 esu) and low absorption in the visible and the near infrared regions, making them potentially useful in many applications according to the results of Degenerate Four-Wave Mixing (DFWM).

关 键 词：非线性光学 物质结构 多炔聚合物 过渡金属 

分 类 号：O631.24[理学—高分子化学]