人工晶体学报2024，Vol.53Issue(10)：1669-1674,6.
坩埚下降法生长2英寸镱掺杂钙铌镓石榴石单晶
Growth of 2-Inch Ytterbium-Doped Calcium Niobium Gallium Garnet Single Crystal by Bridgman Method
摘要
Abstract
In this paper,4.2％ytterbium-doped calcium niobium gallium garnet(Yb∶Ca3(NbGa)5O12)crystals with diameter of 2 inch(1 inch=2.54 cm)were grown by Bridgman method.The obtained crystals were intact and free of visible defects.Crystal structure was determine by XRD,which reveals that the crystal belongs to the cubic crystal system with lattice parameters a=b=c=12.493 Å.The crystals were oriented and cut to obtain some(420)plane wafers with dimensions of 10 mm × 10 mm × 1 mm.These wafers were double-side polished to obtain the final samples.The performance of the samples was characterized through X-ray diffraction,ultraviolet-visible spectrophotometer,and fluorescence spectroscope.The results show that the rocking curve of the crystal has a full width at half maximum(FWHM)of 43",and the transmittance reaches 80％in the near-infrared wavelength range.At 935 nm,FWHM of the absorption peak is 47.15 nm and absorption cross-section is 1.53 × 10-20 cm2.When excited with a 980 nm laser,an emission peak was observed at 1 031 nm,corresponding to the transition of Yb3+from the excited state 2 F5/2 to the ground state 2 F7/2.关键词
Yb∶Ca3(NbGa)5O12/坩埚下降法/透过率/吸收峰半峰全宽/激发发射光谱Key words
Yb∶Ca3(NbGa)5O12/Bridgman method/transmittance/FWHM of absorption peak/excitation-emission spectrum分类
数理科学引用本文复制引用
周霖涛,赵涛,孙志刚,姜林文,潘尚可,潘建国,郑燕青..坩埚下降法生长2英寸镱掺杂钙铌镓石榴石单晶[J].人工晶体学报,2024,53(10):1669-1674,6.基金项目
国家自然科学基金(51832009,50772121) （51832009,50772121）
宁波市甬江引才工程创新团队项目 （）
