近年来,一些共轭有机聚合物由于具有大的非线性光学性能和快的时间响应而受到了极大的重视.人们期望用它来制备出具有超快特性的光开关、光计算等光子学方面的器件.但是,迄今为止,所研究的有机聚合物的非线性光学系数或时间响应速度还不能满足实际应用的要求.本文报道了有机聚合物:聚(2,5-二丁氧基)苯撑(简称PPP)在激发态时的非线性光学性能的增强,并且得到了超快时间响应的实验结果.据我们所知,这是首次在聚合物材料中观察到激发态非线性光学增强.实验采用双波耦合和紫外光激发的方法对有机聚合物PPP进行了激发态非线性光学效应增强的研究.在PPP材料中发现了三阶非线性光学性能 In recent years, some conjugated organic polymers have received great attention due to their large nonlinear optical properties and fast time response. It is expected to be used to prepare ultra-fast optical switches, optical computing and other photonics However, to date, the nonlinear optical coefficient or time response of the organic polymers studied can not meet the requirements of practical applications.In this paper, the organic polymers: poly (2,5-dibutoxy) The nonlinear optical properties of phenylephrine (PPP) in the excited state are enhanced and experimental results of the ultrafast time response are obtained. To our knowledge, this is the first time that the nonlinear optical enhancement of the excited state has been observed in polymeric materials In the experiment, the enhancement of excited-state nonlinear optical effect of organic polymer PPP was studied by using dual-wave coupling and ultraviolet excitation.The third-order nonlinear optical properties