Effects of Laser-Induced Heating on the Photoinduced Birefringence in Azobenzene-Side-Chain Copolymer
YANG Jun1, MING Hai1, ZHANG Jiang-Ying1, WANG Pei1, LANG Jian-Jing1, LU Yong-Hua1, LIU Jian2, ZHANG Qi-Jin2
1Department of Physics, University of Science and nTechnology of China, Hefei 230026
2Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026
Effects of Laser-Induced Heating on the Photoinduced Birefringence in Azobenzene-Side-Chain Copolymer
YANG Jun1;MING Hai1;ZHANG Jiang-Ying1;WANG Pei1;LANG Jian-Jing1;LU Yong-Hua1;LIU Jian2;ZHANG Qi-Jin2
1Department of Physics, University of Science and nTechnology of China, Hefei 230026
2Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026
Abstract： The photoinduced birefringence was observed in the polymer poly[2-(4-(4-cyanophenyl) diazenyl phenyloxy) ethoxyl methacrylate] with a cw 532 nm laser. The azobenzene polymer character has been studied under the conditions of various illuminating time and light intensities. By analysing the processes of reorientation, the effect 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 function, i.e., biexponential curves and Gaussian curves. The relationship among all the parameters has also been presented. With the modified fitting function, we obtain a better fitting result.
YANG Jun;MING Hai;ZHANG Jiang-Ying;WANG Pei;LANG Jian-Jing;LU Yong-Hua;LIU Jian;ZHANG Qi-Jin. Effects of Laser-Induced Heating on the Photoinduced Birefringence in Azobenzene-Side-Chain Copolymer[J]. 中国物理快报, 2003, 20(10): 1826-1828.
YANG Jun, MING Hai, ZHANG Jiang-Ying, WANG Pei, LANG Jian-Jing, LU Yong-Hua, LIU Jian, ZHANG Qi-Jin. Effects of Laser-Induced Heating on the Photoinduced Birefringence in Azobenzene-Side-Chain Copolymer. Chin. Phys. Lett., 2003, 20(10): 1826-1828.
2003, Vol. 20 
