| KDP晶体的杂质与光学性能分析 |
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| 引用本文： | 庄欣欣,谭奇光,林翔,苏根博,李征东.KDP晶体的杂质与光学性能分析[J].强激光与粒子束,2001,13(4):389-392. |
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| 作者姓名： | 庄欣欣 谭奇光 林翔 苏根博 李征东 |
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| 作者单位： | 中国科学院 福建物质结构研究所，福建 福州 350002 |
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| 基金项目： | 国家自然基金资助课题 ( 5 9782 0 0 2 ) |
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| 摘 要： | 测量常规方法与快速方法生长的非线性光学KDP晶体紫外及近红外波段透射光谱性能，并测定了晶体不同生长区域杂质的含量，通过对实验结果的分析比较讨论了影响晶体紫外透过性能的因素；采用多脉冲平均方式测量了不同方法生长晶体在1 064nm及532 nm皮秒激光脉冲作用下的晶体损伤阈值，晶体的体吸收系数与晶体抗损伤能力的对应关系表明晶体内部的杂质与缺陷存在着明显的光吸收, 从而降低了晶体对高能量脉冲的负载能力。
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| 关 键 词： | KDP晶体 紫外光谱 杂质分析 损伤阈值 吸收系数 |
| 文章编号： | 1001-4322(2001)04-0389-04 |
| 收稿时间： | 2001/2/3 |
| 修稿时间： | 2001年2月3日 |
Impurities analysis and optical properities of KDP crystals |
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| ZHUANG Xin xin,TAN Qi guang,LIN Xiang,SU Gen bo,L I Zheng dong.Impurities analysis and optical properities of KDP crystals[J].High Power Laser and Particle Beams,2001,13(4):389-392. |
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| Authors: | ZHUANG Xin xin TAN Qi guang LIN Xiang SU Gen bo L I Zheng dong |
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| Affiliation: | Fujian Institute of Research on the Structure of Matter, the Chinese Academy of Sciences, P.O.Box 143, Fuzhou 350002, China |
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| Abstract: | With the analysis of impurities a t different locations and spectral transmittance of conventionally and rapid gro wn KDP crystals, several factors which influence the transmittance of crystals a t ultraviolet band are discussed. Also multi short damage thresholds of crystal s induced by pico second laser pulses at wavelength 1 064nm and 532nm are repor ted. Crystal adsorption and the damage threshold correspondent suggest that impu rities as well as the lattice defect convert irradiance to heat distinctly and t hus reduce the damage threshold of crystals. |
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| Keywords: | KDP crystals ultr a violet spectrum impurities analysis damage threshold absorption coefficient |
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