| 共轭有机高聚物PPQ薄膜非线性吸收的Z-扫描测量 |
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| 引用本文： | 黄金荣,刘建华,朱鹤元,胡谊梅,孙迭篪,李富铭,孙猛.共轭有机高聚物PPQ薄膜非线性吸收的Z-扫描测量[J].中国激光,2000,27(12):1118-1122. |
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| 作者姓名： | 黄金荣 刘建华 朱鹤元 胡谊梅 孙迭篪 李富铭 孙猛 |
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| 作者单位： | 1. 三束材料改性国家重点实验室,复旦大学分部,复旦大学物理系,上海,200433
2. 复旦大学高分子科学系,上海,200433 |
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| 基金项目： | 国家自然科学基金! (批准号 :1980 4 0 0 3)，国家博士后基金，复旦大学青年基金 |
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| 摘 要： | 用 Z-扫描方法在 532 nm波长测量了共轭高聚物 PPQ( polyphenylquinoxalines)薄膜的三阶光学非线性参数 ,发现其较强的非线性 (双光子 )吸收系数β≈ 0 .59cm/ MW。同时得到 Kerr系数n2 ≈ 9.5× 10 -10 esu,与用其他方法的测量结果较好地吻合。
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| 关 键 词： | Z-扫描 共轭高聚物 超快光学非线性 |
| 收稿时间： | 1999/11/29 |
Z-scan Measurement on the Third-order Nonlinear Optical Absorption of Conjugated PPQ Polymer Film |
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| Huang Jinrong,Liu Jianhua,Zhu Heyuan,Hu Yimei,Sun Diechi,Li Fuming,Sun Meng.Z-scan Measurement on the Third-order Nonlinear Optical Absorption of Conjugated PPQ Polymer Film[J].Chinese Journal of Lasers,2000,27(12):1118-1122. |
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| Authors: | Huang Jinrong Liu Jianhua Zhu Heyuan Hu Yimei Sun Diechi Li Fuming Sun Meng |
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| Abstract: | Measurements on the third order optical nonlinearities of the conjugated polymeric cast film of PPQ (polyphenylquinoxalines) were performed based on the so called Z-scan method using a frequency doubled mode-locked Nd:YAG laser with low repetition rate.The nonlinear absorptive coefficient β=0.59 cm/MW,was obtained for PPQ,in addition,the measured nonlinear refractive index coefficient γ=2.4×10-12 cm2/W was in a good agreement with the previously reported value. |
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| Keywords: | Z-scan conjugated polymer ultrafast optical nonlinearity |
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