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| Mg:Fe:LiNbO3晶体的生长及光学性能研究 | |
| 引用本文： | 周玉祥,郑威,刘彩霞,刘波,徐玉恒.Mg:Fe:LiNbO3晶体的生长及光学性能研究[J].光子学报,2004,33(5):577-580. |
| 作者姓名： | 周玉祥 郑威 刘彩霞 刘波 徐玉恒 |
| 作者单位： | 1. 哈尔滨工业大学应用化学系,哈尔滨,150001 2. 哈尔滨理工大学材料科学与工程学院,哈尔滨,150040 |
| 基金项目： | 国家基础研究973计划(G19990330)和国家高科技发展863计划(2001AA31304)资助 |
| 摘 要： | 在Fe:LiNbO3中掺进MgO和Fe2O3以提拉技术生长Mg:Fe:LiNbO3晶体.对晶体进行极化和还原处理.测试晶体的吸收光谱,Mg:Fe:LiNbO3晶体吸收边相对Fe:LiNbO3晶体发生紫移.测试晶体的红外光谱,Mg:(5 mol%)Fe:LiNbO3晶体OH-吸收峰由Fe:LiNbO3晶体的3482 cm-1移到3534 cm-1.采用锂空位模型阐述Mg:Fe:LiNbO3晶体,吸收边和OH-吸收峰移动的机理.测试晶体的抗光致散射能力.Mg:(5 mol%)Fe:LiNbO3晶体抗光致散射能力比Fe:LiNbO3晶体提高一个数量级以上.测试晶体的衍射效率和响应时间.Mg:Fe:LiNbO3晶体响应速度比Fe:LiNbO3晶体提高四倍. |
| 关 键 词： | Mg:Fe:LiNbO3晶体 光学性能 吸收光谱 |
| 收稿时间： | 2003-01-30 |
| 修稿时间： | 2003年1月30日 |
Growth of Mg:Fe:LiNbO3 Crystal and Optics of Properties |
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.Growth of Mg:Fe:LiNbO3 Crystal and Optics of Properties[J].Acta Photonica Sinica,2004,33(5):577-580. |
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| Authors: | |
| Institution: | (1 Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001) (2 School of Material Science and Engineering,Harbin University of Science and Technology,Harbin 150040) |
| Abstract: | Doping MgO and Fe2O3 in LiNbO3, Mg:Fe:LiNbO3 crystal has been grown by the Czochralski technique. Crystals going on polarization and reduction treatment .Absorption spectra of crystals have been measured. The absorption edge of Mg:Fe:LiNbO3 crystal opposed Fe:LiNbO3 taken place ultra moving. The infrared spectra of crystals have been measured. The OH- absorption peak of Mg:Fe:LiNbO3 crystal from 3482cm-1 of Fe:LiNbO3 crystal have moved 3534 cm-1. Using Li vacancy model expound mechanism of absorption edge and absorption peak shift. Photo scattering resistance ability of crystals have been measured. Photo scattering ability of Mg:Fe:LiNbO3 crystal than Fe:LiNbO3 crystal rised over one order of magnitude, The diffraction efficiencies and response time of crystals have been measured. The response speed of Mg:Fe:LiNbO3 crystal than Fe:LiNbO3 raised four time. |
| Keywords: | Mg:Fe:LiNbO3 crystal Optics property Absorption spectra |
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