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| 影响KNSBN:Cu晶体中全息光栅读取时间长短的因素 | |
| 引用本文： | 胡居广,姚建铨,阮双琛.影响KNSBN:Cu晶体中全息光栅读取时间长短的因素[J].光子学报,2004,33(3):357-359. |
| 作者姓名： | 胡居广 姚建铨 阮双琛 |
| 作者单位： | [1]天津大学精仪学院激光与光电子研究所，教育部光电信息技术科学重点实验室，天津300072 [2]深圳大学工程技术学院，深圳518060 |
| 基金项目： | 天津市光电子联合科学研究中心 (0 13 1840 11)，863项目(2 0 0 2 1190 )资助 |
| 摘 要： | 系统分析了掺铜钾钠铌酸锶钡(KNSBN:Cu)晶体中全息光栅的读取过程,发现全息光栅读取时间的长短与读取光的强度以及样品的温度有关,实验表明,温度为50℃读取时间约为95℃时的2倍;读取光强为1.8 mW时的读取时间为38 mW时的6倍,而且在实验范围内,读取时间和写入时间近似为线性关系. |
| 关 键 词： | 全息光栅 读取时间 温度 光强 |
| 收稿时间： | 2003-06-24 |
| 修稿时间： | 2003年6月24日 |
The Influence on the Reading Time-length of Holographic Gratings in a KNSBN:Cu Crystal |
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.The Influence on the Reading Time-length of Holographic Gratings in a KNSBN:Cu Crystal[J].Acta Photonica Sinica,2004,33(3):357-359. |
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| Authors: | |
| Institution: | (1 Institute of Laser and Optoelectronics , Tianjin University, Tianjin 300072) (2 Physics Department of Normal College, Shenzhen University, Shenzhen 518060) (3 College of Engineer and Technology, Shenzhen University, Shenzhen 518060) |
| Abstract: | The reading processes of holographic gratings in a cope-doped KNSBN crystal have been analyzed. The reading time-length was related to the reading beam intensity and the temperature. Experiments showed that the time-length at 50℃ is 2 time longer than that of 95℃; the time-length under 1.8 mW reading beam intensity is 6 time longer than that of 38 mW. Moreover, the linear relationship is demonstrated between the reading time and writing time in certain range. |
| Keywords: | Holographic gratings Reading time-length Temperat ure Beam intensity |
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