| Temperature Dependence of Photoinduced Birefringence in an Azobenzene Polymer |
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| 引用本文： | 许洪涛 王长顺 潘煦 张小强 王传玉 孙存英. Temperature Dependence of Photoinduced Birefringence in an Azobenzene Polymer[J]. 中国物理快报, 2007, 24(2): 450-453 |
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| 作者姓名： | 许洪涛 王长顺 潘煦 张小强 王传玉 孙存英 |
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| 作者单位： | Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10675083, and the Applied Materials Shanghai Research and Development Fund （0416）. |
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| 摘 要： | The photoinduced birefringence in an azobenzene polymer is investigated at different temperatures between -20℃ to 50℃. It is found that there is a peak value of photoinduced birefringence in the temperature dependence of the photoinduced birefringence under a certain pumping intensity. With the pump light in 90mW/cm^2, the peak value of the photoinduced birefringence appeared at about 0℃ C. The effect of temperature on the photoinduced birefringence is discussed using the competition mechanism between the photoinduced reorientation and the thermal random motion.
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| 关 键 词： | 光致发光 双折射 偶氮苯 聚合物 |
| 收稿时间： | 2006-08-01 |
| 修稿时间： | 2006-08-01 |
Temperature Dependence of Photoinduced Birefringence in an Azobenzene Polymer |
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| XU Hong-Tao,WANG Chang-Shun,PAN Xu,ZHANG Xiao-Qiang,WANG Chuan-Yu,SUN Cun-Ying. Temperature Dependence of Photoinduced Birefringence in an Azobenzene Polymer[J]. Chinese Physics Letters, 2007, 24(2): 450-453 |
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| Authors: | XU Hong-Tao WANG Chang-Shun PAN Xu ZHANG Xiao-Qiang WANG Chuan-Yu SUN Cun-Ying |
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| Affiliation: | Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 |
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| Abstract: | The photoinduced birefringence in an azobenzene polymer is investigated at different temperatures between -20°C to 50°C. It is found that there is a peak value of photoinduced birefringence in the temperature dependence of the photoinduced birefringence under a certain pumping intensity. With the pump light in 90mW/cm2, the peak value of the photoinduced birefringence appeared at about 0°C. The effect of temperature on the photoinduced birefringence is discussed using the competition mechanism between the photoinduced reorientation and the thermal random motion. |
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| Keywords: | 42.70.Jk 42.65.Sf 42.70.Ln |
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