Studies on Nonlinear Optical Effects of Polymers.

有机材料的非线性光学效应近年来受到人们的广泛关注，因为这些材料具有将激光束的波长改变为1 / 2或1 / 3的强大潜力。在不久的将来，这种效应将在光电时代发挥重要作用。两年来，我们一直在研究具有强非线性光学效应的新型聚合物和有机材料。在此期间，我们阐明了结构与光学非线性的关系，并在此基础上开发了新的聚合物和有机材料。结果如下：1。从理论上阐明了三次谐波产生与有机结构之间的关系。根据这一理论，我们发现一系列聚二烯烃化合物表现出很强的THG.3。聚二烯烃（DSP）的光学损伤仅受到比聚二烯烃（kdp）高一个数量级的高强度激光束的影响。钙酮衍生物表现出很强的SHG。其活性是LINb <O_3>的8倍，是无机材料中活性最高的。

Nonlinear optical effects of organic materials have recenty attracted much attention because these materials have a strong potential to change wave length of laser beam into a half or one third. This effect is going to play a very important role in the optelectronic age in near future. We have been studying on new polymer and organic materials showing strong nonlenear optical effects for two years.During this research period we have elucidated relationship between structure and optical nonlinearity and developed new polymer and organic materials based on our theory. The results are as follows.1. The relationship between third harmonic generation (THG) and organic structure have been elucidated theoretically.2. According to the theory, we have found that a series of poly(diolefine) compounds showed strong THG.3. Optical damage of poly(diolefine) (DSP) suffers only very high intensity laser beam which is one order of magnitude higher than that of KDP.4. Calcone delivatives shows very strong SHG. The activity is 8 times begger than that of LINb <O_3> which is highest among inorganic materials.