| 单光子和双光子激发的超歧化聚合物的光谱学特性研究 |
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| 引用本文： | 杨智,丽娜,夏安东,贺庆国,蔺洪振,白凤莲. 单光子和双光子激发的超歧化聚合物的光谱学特性研究[J]. 化学物理学报, 2007, 20(4): 500-508 |
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| 作者姓名： | 杨智 丽娜 夏安东 贺庆国 蔺洪振 白凤莲 |
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| 作者单位： | 中国科学院化学研究所分子反应动力学国家重点实验室，北京100080,中国科学院化学研究所分子反应动力学国家重点实验室，北京100080,中国科学院化学研究所分子反应动力学国家重点实验室，北京100080,中国科学院化学研究所有机固体实验室，北京100080,中国科学院化学研究所有机固体实验室，北京100080,中国科学院化学研究所有机固体实验室，北京100080 |
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| 摘 要： | 研究了二种新型超歧化聚合物在氯仿和二甲基甲酰胺溶剂中的飞秒激光单光子和双光子激发的光谱学特性．这二种聚合物是以苯为核、以对二甲氧基苯为连接单元，分别以二甲基苯胺为端基或以特丁基苯为端基的超歧化共轭聚合物．结果表明这种超歧化聚合物具有较大的溶剂极性相关的飞秒双光子吸收截面，不同的端基不仅影响分子内的电荷转移，而且导致超歧化分子共轭程度的变化．作为一种潜在的光学非线性材料，利用这种大的双光子吸收截面的超歧化聚合物可实现了飞秒双光子直写的三维高密度数据存储．
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| 关 键 词： | 超歧化聚合物，双光子激发截面，双光子激发诱导的光学数据存储 |
| 收稿时间： | 2007-05-09 |
| 修稿时间： | 2007-07-11 |
Spectroscopic Characteristics of Hyperbranched Conjugated Polymers Studied by One- and Two-Photon Excitations |
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| Zhi Yang,Na Li,An-dong Xi,Qing-guo He,Hong-zhen Lin and Feng-lian Bai. Spectroscopic Characteristics of Hyperbranched Conjugated Polymers Studied by One- and Two-Photon Excitations[J]. Chinese Journal of Chemical Physics, 2007, 20(4): 500-508 |
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| Authors: | Zhi Yang Na Li An-dong Xi Qing-guo He Hong-zhen Lin Feng-lian Bai |
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| Affiliation: | State Key Laboratory of Molecular Reaction Dynamics, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China,State Key Laboratory of Molecular Reaction Dynamics, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China,State Key Laboratory of Molecular Reaction Dynamics, and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China,Key Laboratory of Organic Solids, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China,Key Laboratory of Organic Solids, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China,Key Laboratory of Organic Solids, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | Spectroscopic properties of new hyperbranched conjugated polymers functionalized in periphery with N,N-dimethylaniline and tert-butyl-benzene as terminal groups are investigated by one- and two-photon excitations. The absorption, °uorescence excitation and emission spectra are examined in chloroform and N,N-dimethylformamide. The two-photon excitation measurements show that the new hyperbranched conjugated polymer possesses large two-photon excitation cross section which makes it a very attractive candidate for the potential application as nonlinear optical materials. As an example, the two-photon induced three-dimensional data storage is also demonstrated. |
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| Keywords: | Hyperbranched conjugated polymer Two-photon excitation cross section Two-photon induced optical data storage |
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