摘要
采用提拉法生长了质量优良的Yb:GdScO_(3)晶体,对样品的X射线粉末衍射进行了Rietveld精修,给出了晶体计算密度及掺杂浓度。Yb^(3+)的有效分凝系数计算为1.04。室温下测量了其吸收光谱、发射光谱和荧光寿命,首次计算了GdScO_(3)基质中Yb^(3+)的吸收、发射振子强度、谱线强度、跃迁概率、能级寿命和积分发射截面等重要光谱参数,对其激光性能进行了初步评估。结果表明,Yb:GdScO_(3)易于输出1030 nm和1060 nm波段附近的激光,而对于1000 nm附近的激光输出则只有在高粒子数反转情况下才可能实现。
A high quality Yb∶GdScO_(3)crystal was grown by Czochralski method.The X-ray diffraction was refined by Rietveld method,and the calculated crystal density and doping concentration were obtained.The effective segregation coefficient of Yb^(3+)is calculated to be 1.04.Its absorption spectrum,emission spectrum and fluorescence lifetime were measured at room temperature.The absorption,emission oscillator strength,spectral line strength,transition probability,energy level lifetime and integral emission cross section of Yb^(3+)in GdScO_(3)matrix were calculated for the first time.The laser performance is preliminarily evaluated.The results show that Yb∶GdScO_(3)is easy to output laser near 1030 nm and 1060 nm,while the laser output near 1000 nm is only possible under the condition of high population inversion.
作者
李加红
张庆礼
孙贵花
高进云
王小飞
窦仁勤
丁守军
张德明
刘文鹏
罗建乔
孙彧
LI Jia-hong;ZHANG Qing-li;SUN Gui-hua;GAO Jin-yun;WANG Xiao-fei;DOU Ren-qin;DING Shou-jun;ZHANG De-ming;LIU Wen-peng;LUO Jian-qiao;SUN Yu(The Key Laboratory of Photonic Devices and Materials,Anhui Province,Anhui Institute of Optics and Fine Mechanics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;Advanced Laser Technology Laboratory of Anhui Province,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China;School of Science and Engineering of Mathematics and Physics,Anhui University of Technology,Maanshan 243002,China)
出处
《发光学报》
EI
CAS
CSCD
北大核心
2022年第11期1779-1788,共10页
Chinese Journal of Luminescence
基金
安徽省先进激光技术实验室开放项目(AHL 20220 ZR04)
国家自然科学基金(51802307)
安徽省重大科技专项(202203a05020002)资助项目。