中文题目: 激光激发Ce:YAG单晶与陶瓷的发光性能
外文题目: Luminescence Properties of Ce:YAG Single Crystals and Ceramics Under Laser Excitation
作者: 靳亚硕; 郭向朝; 曹顿华; 章汉梁; 张国栋; 李海兵
刊名: 中国激光
年: 2017 卷: 44 期: 10 文章编号：1003001
中文关键词:
材料; 荧光材料; 光通量; 高功率密度激光; 转换效率
英文关键词:

materials; fluorescent materials; luminous flux; high power density laser; conversion efficiency
中文摘要:
制备了不同Ce~(3+)掺杂浓度(摩尔分数)的钇铝石榴石(YAG)单晶和陶瓷,并对激光激发Ce:YAG单晶和陶瓷的光通量、光电转换效率、显色指数及色温进行了研究。在电流为2.6A的激光激发下,Ce~(3+)掺杂浓度为0.3%的陶瓷的光通量最高,为617.2lm;Ce~(3+)掺杂浓度为0.5%的单晶的显色指数较高,为62,色温为5841K。在功率为2.61W、材料中心功率密度达10.8W·mm~(-2)的激光激发下,Ce:YAG单晶和陶瓷的光转换均未达到饱和,对应的光-光转换效率均约为240lm·W~(-1)。实验结果表明,在高功率密度激光激发下,陶瓷和单晶均适用于产生高亮度白光。

英文摘要:
Yttrium aluminium garnet(YAG)single crystals and ceramics with different Ce~(3+)-doping concentrations (mole fraction)are prepared.The luminous flux,photoelectric conversion efficiency,color rendering index,and color temperature of Ce:YAG single crystals and ceramics under laser excitation are also analyzed.Under the excitation of the laser with a current of 2.6A,the luminous flux of ceramics with a Ce~(3+)-doping concentration of 0.3%is the highest at 617.2lm.The single crystals with a Ce~(3+)-doping concentration of 0.5% have a high color rendering index of 62 and a color temperature of 5841K.Under the excitation of the laser with a power of 2.61W and a power density of 10.8W·mm~(-2) at the material center,the optical conversions of Ce:YAG single crystals and ceramics are both unsaturated and the corresponding optical-to-optical conversion efficiencies are both about 240lm·W~(-1).The experimental results show that the ceramics and single crystals are suited to produce high brightness white light under high power density laser excitation.


文献类型: 期刊论文
正文语种: Chinese
收录类别: CSCD
DOI: 10.3788/CJL201744.1003001


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