Effects of Laser-Induced Heating on the Photoinduced Birefringence in Azobenzene-Side-Chain Copolymer |
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作者姓名: | 杨军 明海 章江英 王沛 郎建英 鲁拥华 刘剑 张其锦 |
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作者单位: | [1]DepartmentofPhysics,UniversityofScienceandTechnologyofChina,Hefei230026 [2]DepartmentofPolymerScienceandEngineering,UniversityofScienceandTechnologyofChina,Hefel230026 |
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摘 要: | The photoinduced birefringence was observed in the polymer poly[2-(4-(4-cyanophenyl) diazenyl phenyloxy) ethoxyl methacrylate] with a cw 532nm laser. The az, obenz, ene polymer character has been studied under the con-ditions of various illuminating time and light intensities. By analysing the processes of reorientation, the egect of laser-induced heating has been introduced to the buildup of photoinduced birefringence in azobenzene-side-chain copolymer. The curves for the buildup of birefringence were fitted with a modified fimction, i.e., biexponential curves and Gaussian curves. The relationship among all the parameters has also been presented. With the modified fitting fimction, we obtain a better fitting result.
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关 键 词: | 激光诱导加热 光致双折射 偶氮苯侧链聚合物 光学性质 |
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