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采用实时测量光学二次谐波产生（ＳＨＧ）和吸收光谱的方法对苯腙类有机分子ＮＤＡ及一种新合成的经氰基团修饰的有机分子ＣＮＤＡ掺杂ＰＭＭＡ极化聚合膜的非线性光学性质进行了研究。实验中发现两种掺杂极化聚合膜的最佳电晕极化温度均低于它们的玻转温度，ＣＮＤＡ／ＰＭ－ＭＡ极化掺杂聚合膜的χ（２）较ＮＤＡ／ＰＭＭＡ极化聚合膜的大。结合极化前和极化后吸收峰强度的变化，得到ＣＮＤＡ分子的非线性极化率β约为１４６×１０－３０ｅｓｕ。在撤离极化场后，ＣＮＤＡ／ＰＭＭＡ的二次谐波强度的弛豫也比ＮＤＡ／ＰＭＭＡ的慢
The nonlinear optical properties of phenylpropylhydrazone-like organic molecules NDA and a newly synthesized cyano-group-modified organic molecule CNDA-doped PMMA polarization polymerized films were measured by real-time measurement of optical second harmonic generation (SHG) and absorption spectra Nature has been studied. It was found that the optimum corona polarization temperatures of the two doping polarized polymeric films were all lower than their glass transition temperatures. The χ (2) ratio of CNDA / PM-MA doped films was higher than that of NDA / PMMA polarization Polymerized film large. The nonlinear polarizability β of CNDA was about 146 × 10-30 esu, combining with the change of absorption intensity before and after polarization. After evacuation of the polarization field, the relaxation of the second harmonic intensity of CNDA / PMMA is also slower than that of NDA / PMMA