无机材料学报 ›› 2013, Vol. 28 ›› Issue (10): 1148-1152.DOI: 10.3724/SP.J.1077.2013.13075 CSTR: 32189.14.SP.J.1077.2013.13075

• 研究论文 • 上一篇    下一篇

DCTA对KDP晶体的快速生长与光学性能的影响

朱胜军, 王圣来, 丁建旭, 程秀凤, 王正平, 许心光   

  1. (山东大学 晶体材料国家重点实验室, 济南250100)
  • 收稿日期:2013-02-01 修回日期:2013-03-14 出版日期:2013-10-20 网络出版日期:2013-09-18
  • 作者简介:朱胜军(1987-), 男, 博士研究生. E-mail: zhushengjun120623@126.com
  • 基金资助:

    国家自然科学基金(50721002; 51202131)

Effect of DCTA on the Rapid Growth and Optical Characterization of KDP Crystal

ZHU Sheng-Jun, WANG Sheng-Lai, DING Jian-Xu, CHENG Xiu-Feng, WANG Zheng-Ping, XU Xin-Guang   

  1. (State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, China)
  • Received:2013-02-01 Revised:2013-03-14 Published:2013-10-20 Online:2013-09-18
  • About author:ZHU Sheng-Jun. E-mail: zhushengjun120623@126.com
  • Supported by:

    National Natural Science Foundation of China (50721002; 51202131)

摘要: 环己二胺四乙酸(DCTA)作为一种新型添加剂被加入到KDP晶体生长溶液中。采用“点籽晶”快速生长技术, 在掺杂100×10-6 DCTA的饱和溶液中, 生长了KDP晶体, 生长速度达20 mm/d。研究了这种新型添加剂DCTA对快速生长的KDP晶体的生长习性和光学质量的影响, 并与常用添加剂EDTA的影响效果进行了对比。研究发现, 在KDP晶体生长溶液中添加100×10-6 DCTA使生长溶液的亚稳区宽度提高了约10℃, 晶体(100)面的生长速度提高了3~10倍; 生长出的晶体在紫外波段的透过率上升了2~8倍, 晶体内部的光散射大大减轻, 激光损伤阈值也有所提高。添加剂DCTA对KDP晶体生长及性能的改善作用比同等浓度的EDTA更加显著。

关键词: KDP晶体, 快速生长, 光学性能, 添加剂

Abstract: Cyclohexanediaminetetraacetic acid (DCTA) as a new additive was added into the KDP growth solution. The KDP crystal was grown from aqueous solution with 100×10-6 DCTA by the “point seed” rapid growth technique, at growth rate of about 20 mm/d. Effects of the new additive DCTA on growth habit and optical quality of the rapidly grown KDP crystal were investigated and compared with those of EDTA which was a common additive used in the rapid growth of KDP crystal. With 100×10-6 DCTA added in growth solution, the metastable temperature zone width of solution increased about 10℃ and the growth rate of (100) faces of KDP crystal accelerated by 3–10 times. Furthermore, the optical quality of crystal doped with DCTA was improved significantly: such as 2–8 times rise of UV transmittance, great mitigation of light scattering and a few exaltation of laser damage threshold. Additionally, the beneficial effects of DCTA on growth habit and optical quality of the rapidly grown KDP crystal were more significant than those of EDTA with the same concentration.

Key words: KDP crystal, rapid growth, optical characterization, additive

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