| 不同方法DKDP晶体生长和损伤阈值 |
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| 引用本文： | 孙绍涛,季来林,王正平,牟晓明,孙洵,许心光,史崇德.不同方法DKDP晶体生长和损伤阈值[J].强激光与粒子束,2010,22(2). |
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| 作者姓名： | 孙绍涛 季来林 王正平 牟晓明 孙洵 许心光 史崇德 |
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| 作者单位： | 1. 山东大学 晶体材料国家重点实验室， 济南 250100;2. 中国工程物理研究院 上海激光等离子体研究所, 上海 201800;3. 海军航空工程学院 基础部， 山东 烟台 264001 |
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| 基金项目： | 国家自然科学基金项目，国家自然科学基金委员会-中国工程物理研究院联合基金项目，国家高技术发展计划项目 |
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| 摘 要： | 生长方法是影响DKDP晶体生长和光损伤阈值的一个重要因素。分别采用传统降温法和点籽晶快速生长法,利用同种原料从氘化程度为85%的溶液生长了DKDP晶体,并选取部分Ⅱ类3倍频晶片进行3倍频光损伤阈值和透过性能测试。实验表明,不同生长方法对DKDP晶体的损伤阈值以及DKDP晶体的生长速度的影响效果正好相反,即由于生长溶液过饱和度的差别,点籽晶快速生长法晶体生长速度为传统方法的10倍,但晶体损伤阈值下降了50%,且紫外波段透过性能下降明显。
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| 关 键 词： | DKDP晶体 损伤阈值 晶体生长 惯性约束聚变 |
| 收稿时间： | 1900-01-01; |
Growth and laser damage threshold of DKDP crystal grown by different methods |
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| SunShaotao,JiLailin,WangZhengping,MuXiaoming,SunXun,XuXinguang,ShiChongde.Growth and laser damage threshold of DKDP crystal grown by different methods[J].High Power Laser and Particle Beams,2010,22(2). |
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| Authors: | SunShaotao JiLailin WangZhengping MuXiaoming SunXun XuXinguang ShiChongde |
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| Institution: | 1. State Key Laboratory of Crystal Materials, Shandong University, Ji’nan 250100, China;2. Shanghai Institute of Laser Plasmas, CAEP, Shanghai 201800, China;3. Basic Department, Naval Aeronautical Engineering Institute, Yantai 264001, China |
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| Abstract: | Growth method is the dominating factor which greatly influences the growth and the laser damage threshold of the DKDP single crystal. In this paper, DKDP crystals were grown from 85%-deuterated solution by using traditional temperature-reduction method and point-seed rapid growth method respectively. Optical transmission and laser damage in unconditioned type Ⅱ tripler-cut DKDP crystals have been studied. It is found that, due to super-saturation effect, by using point-seed rapid growth method, the growth rate of DKDP is about 15 mm/day, which is ten times that by using traditional growth method. But more metallic ionic impurities and inclusions lead to the deterioration in the transmission spectra and laser induced damage threshold. |
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| Keywords: | DKDP crystal laser damage threshold crystal growth ICF |
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