| Tb、Fe双掺LiNbO3晶体的生长及其光折变效应的研究 |
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| 引用本文： | 王家昌 徐怀方. Tb、Fe双掺LiNbO3晶体的生长及其光折变效应的研究[J]. 光子学报, 1996, 25(5): 403-406 |
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| 作者姓名： | 王家昌 徐怀方 |
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| 作者单位： | 哈尔滨工业大学应用物理系，上海师范大学物理系 |
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| 基金项目： | 国家自然科学基金,航天基金 |
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| 摘 要： | 用提拉法从熔体中生长出Tb、Fe双掺LiNbO3晶体,用二波耦合方法测试了晶体的指数增益系数、衍射效率和响应时间。Tb:Fe:LiNbO3薄晶片中,由于光爬行作用,使得晶体的指数增益系数和衍射效率大大增强,掺入Tb后晶体的光电导值增大,响应时间缩短。
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| 关 键 词： | Tb:Fe:LiNbO3晶体 指数增益 衍射效率 响应时间 光折变 |
| 收稿时间： | 1995-03-10 |
GROWTH AND THE PHOTOREFRACTIVE EFFECT OF Tb AND Fe CO-DOPED LiNbO3 CRYSTAL |
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| Wang Jiachang,LiMinghua,Xu Kebin. GROWTH AND THE PHOTOREFRACTIVE EFFECT OF Tb AND Fe CO-DOPED LiNbO3 CRYSTAL[J]. Acta Photonica Sinica, 1996, 25(5): 403-406 |
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| Authors: | Wang Jiachang LiMinghua Xu Kebin |
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| Affiliation: | 1. Department of Applied Physics, Harbin Institute of technology, Harbin 150006;2. Department of Physics, Shanghai Normal University, 200234 |
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| Abstract: | The Tb and Fe co-doped LiNbO3 crystal was grown from melt by Czochralski method.Theexponential gain coefficient the diffractive efficiency and the response time were measured by usingtwo-wave coupling technique; Because of the light climbing effect,the exponencial gain and thediffractive efficiency were increased greatly in thin sheet.In the crystal co doped Tb ions,thephotoconductivity was increased,and the response time was shortened. |
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| Keywords: | Tb:Fe:LiNbO3 crystal Exponencial gain Diffractive efficiency Response time Photorefraction |
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