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A PVK-Based High-Performance Photorefractive Polymer Composite Under a Low External Electric Field |
| ZHENG Rui-Zhi1;ZHAO You-Yuan1;MIN Ke2;WANG Chang-Chun2;LI Fu-Ming1 |
| 1State Key Laboratory For Advanced Photonic Materials & Devices, Department of Optics Science & Engineering, Fudan University, Shanghai 200433
2Department of Macromolecule Science, Fudan University, Shanghai 200433
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| Cite this article: |
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ZHENG Rui-Zhi, ZHAO You-Yuan, MIN Ke et al 2002 Chin. Phys. Lett. 19 795-797 |
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Abstract We describe a PVK-based photorefractive polymer composite doped with disperse red 1, poly-butylacrylate and TNF. By the two-beam coupling experiment, We investigate its photorefractive properties as well as the dynamic process of the index gratings in the sample. We observe the photorefractive effect in the absence of an applied external electric field. The two-beam coupling gain coefficient was measured to reach as higher as 140 cm-1 in the absence of an external applied electric field and a value of 470cm-1 at a poling dc electric field of 25V/μm.
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| Keywords:
42.65.Hw
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Published: 01 June 2002
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| PACS: |
42.65.Hw
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(Phase conjugation; photorefractive and Kerr effects)
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