Yb:YAG微晶玻璃的制备与光谱特性  

Preparation and Spectral Properties of Yb:YAG Glass-ceramic

作　　者：张雷[1] 戚凭[1] 

机构地区：[1]青岛大学物理科学学院,青岛266071

出　　处：《青岛大学学报（自然科学版）》2013年第4期52-56,共5页Journal of Qingdao University(Natural Science Edition)

摘　　要：在1 300℃下熔制了Yb3+离子掺杂高折射率PbO-Y2O3-A12O3-SiO2系统玻璃,并在1 050℃进行了微晶化热处理。利用XRD,光学显微镜和荧光光谱仪分别分析了微晶玻璃的相变、微观结构和光谱特性。研究表明:玻璃经1 050℃热处理后析出了单一相的YAG晶体,晶粒尺寸在40μm左右且分布均匀;2mm厚样品光透过率为80%;Yb3+离子在热处理后择优进入了YAG晶格,Yb:YAG微晶玻璃的荧光光谱显示了Yb3+离子2F5/2→2F7/2的能级跃迁。Yb3＋-doped precursor in the high refractive index PbO-Y2O3-Al2O3-SiO2 system was prepared by melting technique at 1 300 ℃,then annealed at 1 050 ℃.The formation of YAG crystal phase,micro-structure and spectral properties with progress of heat-treatment was examined by X-ray diffraction （XRD）,optical microscope and fluorescent spectroscope.The results show that single-phase YAG with grain size of 40 μm is obtained by heat-treatment at 1 050 ℃.The transmission of 2 mm thick samples is up to 80%.The Yb3＋ preferentially enter into YAG crystal phase and the measured spectra exhibit emission transitions of 2F5/2→2F7/2 from Yb3＋ ions.

关 键 词：镱-钇铝石榴石微晶玻璃 折射率 光谱特性 

分 类 号：TQ171.73[化学工程—玻璃工业]