人工晶体学报2024，Vol.53Issue(4)：620-626,7.
Yb∶Ca3(NbGa)5O12晶体的坩埚下降法生长及光学性能研究
Growth and Optical Properties of Yb∶Ca3(NbGa)5O12 Crystals by Bridgman Method
摘要
Abstract
Ytterbium ion doped calcium niobium gallium garnet crystal(Yb∶Ca3(NbGa)5 O12)was successfully grown by Bridgman method.The structure of the crystal was analyzed by XRD.The crystal is cubic crystal system,and the unit cell parameter a=b=c=12.471 Å.The crystal was tested by Raman spectroscopy,transmission spectroscopy,absorption and emission spectroscopy,and fluorescence lifetime.The absorption cross section,emission cross section,and gain cross section of the crystal were calculated.The effects of annealing in air on the absorption spectrum,emission spectrum and fluorescence lifetime of the crystal were studied.The absorption cross section at 935 nm before annealing is 1.82 × 10-20cm2,and it decreases to 1.40 × 10-20cm2after annealing.The emission cross section at 1 031 nm before annealing is 0.56 × 10-20cm2,and it decreases to 0.40 × 10-20cm2after annealing.The fluorescence decay time before annealing is 1.42 ms,and it is 1.32 ms after annealing.The results demonstrate that the annealing of Yb∶Ca3(NbGa)5O12 single crystal in air will adversely affect the laser performance of the crystal.关键词
Yb∶Ca3(NbGa)5O12晶体/坩埚下降法/吸收光谱/发射光谱/荧光衰减/退火Key words
Yb∶Ca3(NbGa)5O12 crystal/Bridgman method/absorption spectrum/emission spectrum/fluorescence decay/annealing分类
数理科学引用本文复制引用
赵涛,艾蕾,梁团结,钱慧宇,孙志刚,潘建国..Yb∶Ca3(NbGa)5O12晶体的坩埚下降法生长及光学性能研究[J].人工晶体学报,2024,53(4):620-626,7.基金项目
国家自然科学基金(51832009,512302300) （51832009,512302300）
