| 低电场周期极化化学比掺镁铌酸锂绿光倍频器 |
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| 引用本文： | 陈云琳,楼慈波,黄自恒,陈绍林,张玲,刘士国.低电场周期极化化学比掺镁铌酸锂绿光倍频器[J].发光学报,2003,24(3):253-256. |
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| 作者姓名： | 陈云琳 楼慈波 黄自恒 陈绍林 张玲 刘士国 |
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| 作者单位： | 1. 南开大学, 物理科学学院, 天津, 300071;2. 南开大学, 泰达学院, 天津, 300457 |
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| 基金项目： | 国家自然科学基金，10174040， |
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| 摘 要： | 对气相平衡扩散输运工艺制备的化学比掺镁铌酸锂晶体进行周期极化,实验中发现化学比掺镁铌酸锂晶体的矫顽场为12kV/mm,只有常用的同成分铌酸锂晶体的矫顽场的1/20,用低电场就可以制备出结构均匀周期为62～64μm的周期性极化结构.在室温下对此周期极化结构进行二次谐波倍频实验,其归一化倍频转换效率为48%/W。
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| 关 键 词： | 化学比掺镁铌酸锂晶体 二次谐波 |
| 收稿时间： | 2002-08-14 |
Green Light Generation in Stoichiometric Mg∶LiNbO3 Periodically Poled by Lower Electric Field |
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| Abstract.Green Light Generation in Stoichiometric Mg∶LiNbO3 Periodically Poled by Lower Electric Field[J].Chinese Journal of Luminescence,2003,24(3):253-256. |
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| Authors: | Abstract |
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| Institution: | 1. College of Physics Science, Nankai University, Tianjin 300071, China;2. Teda College, Nankai University, Tianjin 300457, China |
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| Abstract: | Lower electric field periodic poling of vapor transport equilibration preparing stoichiometric Mg∶LiNbO3 crystal is reported for the first time. The coercive field of the crystal was found to be ～1.2kV/mm, only a twentieth of that of the congruent LiNbO3. Homogeneous domain patterns with periods of 6.2～6.4μm was used for the second harmonic generation of green light. A normalized second harmonic generation efficiency 4.8%/W was obtained at room temperature. |
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| Keywords: | second harmonic generation |
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