高级检索
无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

Nd:GdxY1-xCa4O(BO3)3晶体的生长及其光谱性能研究

周娟; 罗军; 钟真武; 华王祥; 范世Ji   

  1. 中国科学院上海硅酸盐研究所, 上海 200050

  • 收稿日期:2000-06-08 修回日期:2000-08-18 出版日期:2001-05-20 网络出版日期:2001-05-20

Growth and Spectra Properties of Nd:GdxY1-xCa4O(BO3)3 Crystal

ZHOU Juan, LUO Jun, ZHONG Zhen-Wu, HUA Wang-Xiang, FAN Shi-Ji

  

  1. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

  • Received:2000-06-08 Revised:2000-08-18 Published:2001-05-20 Online:2001-05-20

PDF (PC)

1007

摘要：

利用熔体提拉法生长了大尺寸，高质量的新型激光自信频晶体Ｎｄ：ＧｄｘＹ
－ｘＣａ４Ｏ（ＢＯ３）３简称Ｎｄ：ＧｄＹＣＯＢ）．对Ｎｄ：ＧｄＹＣＯＢ晶体的ＸＲＤ衍射图进行指标化，得到它的晶胞参数为α＝８．０８０Ａ； ｂ＝１６．０１６Ａ； ｃ＝３．５３８Ａ； β＝１０１．１８°；μ＝４９１．１Ａ３．对取自不同部位的晶体粉末进行ＩＣＰ原子发射光谱分析表明晶体整体组份均匀一致，根据熔体和晶体粉末的ＩＣＰ数据计算，Ｎｄ：ＧｄＹＣＯＢ晶体中Ｎｄ３＋的分凝系数为０．６３．首次报道了 Ｎｄ：ＧｄＹＣＯＢ晶体２００～３０００ｎｍ室温透过光谱和室温荧光光谱及荧光寿命．室温透过光谱表明Ｎｄ：ＧｄＹＣＯＢ晶体的紫外吸收边在～２２０ｎｍ，具有很宽的透光波段（～２２０～２７００ｎｍ）； Ｎｄ：ＧｄＹＣＯＢ晶体在８００ｎｍ附近存在很强的吸收，适合于ＬＤ泵浦．荧光光谱表明Ｎｄ：ＧｄＹＣＯＢ晶体是一种很有潜力的ＲＧＢ（ｒｅｄ；ｇｒｅｅｎ， ｂｌｕｅ）激光自信频晶体．掺杂 ４％、 ５％ Ｎｄ：ＧｄＹＣＯＢ晶体的荧光寿命分别为 １０５μｓ和１００μｓ．

关键词: Nd:GdxY1-xCa4O（BO3）3晶体, 激光自倍频晶体, 提拉法生长, 光谱, RGB

Abstract: GdxY1-xCa4O(BO3)3 (GdYCOB ) crystal is a kind of valuable nonlinear optical crystal. It can
realize THG noncritical phase-matching for Nd:YAG laser and keep stable mechanical and chemical properties. Nd3+, Gd3+ and Y3+
are all rare-earth ions, so we can receive Nd:GdxY1-xCa4O(BO3)3 (Nd:GdYCOB) crystal by a few Nd3+ ions doping. Combined laser action
of the Nd3+ ions and nonlinear optical properties of GdYCOB host crystal in the mixed crystal, a new kind of self-frequency doubling crystal
Nd:GdYCOB was obtained. The synthesis and crystal growth of Nd:GdYCOB crystal were reported in this paper. The transparent spectrum, fluorescent spectrum,
and fluorescence lifetime of Nd:GdYCOB crystal were first measured at room temperature.

Key words: Nd:GdxY1-xCa4O(BO3)3 crysta, self-frequency doubling crystal, czochralski growth, optical spectra, RGB

中图分类号: