Chin. Phys. Lett.  2003, Vol. 20 Issue (10): 1826-1828    DOI:
Original Articles |
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
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YANG Jun, MING Hai, ZHANG Jiang-Ying et al  2003 Chin. Phys. Lett. 20 1826-1828
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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.
Keywords: 71.20.Rv      78.20.Wc      42.70.Jk      42.81.Gs     
Published: 01 October 2003
PACS:  71.20.Rv (Polymers and organic compounds)  
  78.20.Wc  
  42.70.Jk (Polymers and organics)  
  42.81.Gs (Birefringence, polarization)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2003/V20/I10/01826
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YANG Jun
MING Hai
ZHANG Jiang-Ying
WANG Pei
LANG Jian-Jing
LU Yong-Hua
LIU Jian
ZHANG Qi-Jin
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