| Photoinduced Birefringence and Broadband All-Optical Photonic Switch in a Bacteriorhodopsin/Polymer Composite Film |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 50533010. |
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| 摘 要： |
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| 关 键 词： | 光致双折射 宽带 光子开关 聚合物 |
| 收稿时间： | 2007-05-05 |
Photoinduced Birefringence and Broadband All-Optical Photonic Switch in a Bacteriorhodopsin/Polymer Composite Film |
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| Authors: | WEI Lai TENG Xue-Lei LU Ming ZHAO You-Yuan MA De-Wang DING Jian-Dong |
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| Institution: | State Key Laboratory for Advanced Photonic Materials and Devices, and Department of Optical Science and Engineering, Fudan University, Shanghai 200433Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, Department of Macromolecular Science, Advanced Materials Laboratory, Fudan University, Shanghai 200433 |
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| Abstract: | Photoinduced birefringence with large optical nonlinearity in a bacteriorhodopsin/polymer composite film is observed. A high refractive index change of 8.5×10-5 photoinduced by 476nm pumping beam is reached at the low intensity of 6.5mW/cm2. Based on it, a broadband all-optical photonicswitch is realized with an optical controlling switch system. Because of controlling beam's selectivity in switching, the transporting beams of different wavelengths with different intensities and shapes can be modulated by adjusting the wavelength and intensity of the controlling beam. |
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| Keywords: | 42 25 Lc 42 70 Gi 42 79 Ta |
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