| Original Articles |
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Temperature Dependence of Photoinduced Birefringence in an Azobenzene Polymer |
| XU Hong-Tao;WANG Chang-Shun;PAN Xu; ZHANG Xiao-Qiang;WANG Chuan-Yu;SUN Cun-Ying |
| Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 |
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| Cite this article: |
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XU Hong-Tao, WANG Chang-Shun, PAN Xu et al 2007 Chin. Phys. Lett. 24 450-453 |
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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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Received: 01 August 2006
Published: 24 February 2007
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| PACS: |
42.70.Jk
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(Polymers and organics)
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42.65.Sf
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(Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)
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42.70.Ln
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(Holographic recording materials; optical storage media)
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