| 氰基团修饰的苯腙类有机分子掺杂极化聚合膜光学非线性的研究 |
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| 引用本文： | 陶曲明,侯占佳,刘丽英,陈杰,徐雷,王文澄,李富铭,叶明新.氰基团修饰的苯腙类有机分子掺杂极化聚合膜光学非线性的研究[J].光学学报,1999,19(5):72-676. |
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| 作者姓名： | 陶曲明 侯占佳 刘丽英 陈杰 徐雷 王文澄 李富铭 叶明新 |
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| 作者单位： | 1. 复旦大学物理系,三束材料改性国家重点实验室,上海,200433
2. 复旦大学材料科学系,上海,200433 |
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| 基金项目： | 国家自然科学基金,国家科委攀登项目,上海市科委及上海市教委曙光计划 |
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| 摘 要： | 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
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| 关 键 词： | 二次谐波产生 掺杂聚合膜 电晕极化 |
| 收稿时间： | 1998/4/27 |
Optical Nonlinearity Study of Poled Cyano-Group Modified Phenylhydrazone Doped Polymer Films |
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| Tao Quming,Hou Zhanjia,Liu Liying,Chen Jie,Xu Lei,Wang Wencheng,Li Fuming,Ye Mingxin.Optical Nonlinearity Study of Poled Cyano-Group Modified Phenylhydrazone Doped Polymer Films[J].Acta Optica Sinica,1999,19(5):72-676. |
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| Authors: | Tao Quming Hou Zhanjia Liu Liying Chen Jie Xu Lei Wang Wencheng Li Fuming Ye Mingxin |
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| Abstract: | The optical properties of corona poled NDA and a newly synthesized CNDA doped PMMA films were investigated with in situ second-harmonic generation (SHG) measurement and absorption measurement. Optimum corona poling temperatures of these polymeric films were found lower than glass transition temperatures of the materials and the second-order nonlinear susceptibility χ(2) of CNDA/PMMA is improved compared with that of NDA/PMMA. The molecular hyperpolarizability β of the CNDA was estimated to be about 146×10-30 esu from the measured absorbance and χ(2). The relaxation of SHG intensity of CNDA/PMMA was slower than that of NDA/PMMA. |
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| Keywords: | SHG doped polymer film corona poling |
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