Influence of SiO_3~（2-）Impurity on the Optical Properties of KDP Crystal

• 作者: 丁建旭 卢永强 王圣来 王正平 许心光 顾庆天
• 来源期刊: 结构化学
• 学科: 工学
• 关键词: KDP晶体 杂质对 光学性质 晶格缺陷 激光损伤阈值 磷酸二氢钾 杂质浓度 晶体生长
• 年，卷（期）: 2012,（1）
• 页码范围: 105-109
• 页数: 5页
• 分类号: O734|TN213
• 语种: 英文

摘要

In this paper,potassium dihydrogen phosphate（KDP） crystals were grown in the presence of a series of silicate（SiO32-） impurity concentrations via conventional temperature cooling and rapid growth methods,respectively.It revealed that the SiO32-impurity could lead to the decrease of transmittance at the region of ultraviolet band for pyramidal sectors and slightly increased the transmittance for prismatic sectors.SiO32-could enter into the crystal lattice and create lattice defects,which consequently increased the density of light scatter.The decrease of laser damage threshold was attributed to the lattice defects and the redundant electrons brought by the replacement of SiO32-at the PO43-position.