CAJ | 학술논문

利用熔体提拉法生长了大尺寸，高质量的新型激光自倍频晶体Nd:GdxY1-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°;v＝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Nda+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～220um，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)激光自倍频晶体。掺杂4％、5％Nd:GdYCOB晶体的荧光寿命分别为105ps和100μs.
이용용체제랍법생장료대척촌，고질량적신형격광자배빈정체Nd:GdxY1-xCa4O(BO3)3(간칭Nd:GdYCOB)。대Nd:GdYCOB정체적XRD연사도진행지표화，득도타적정포삼수위α＝8.080A;b＝16.016A;c＝3.538A ; β＝101.18°;v＝491.1A3。대취자불동부위적정체분말진행ICP원자발사광보분석표명정체정체조빈균균일치，근거용체화정체분말적ICP수거계산，Nd:GdYCOB정체중Nda+적분응계수위0.63。수차보도료Nd:GdYCOB정체200～3000nm실온투과광보화실온형광광보급형광수명。실온투과광보표명Nd:GdYCOB정체적자외흡수변재～220um，구유흔관적투광파단(～220～2700nm);Nd:GdYCOB정체재800nm부근존재흔강적흡수，괄합우LD빙포。형광광보표명Nd:GdYCOB정체시일충흔유잠력적RGB(red,green,blue)격광자배빈정체。참잡4％、5％Nd:GdYCOB정체적형광수명분별위105ps화100μs.
GdxYi-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:GdxYi-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.