作者: Degang Deng , Shiqing Xu , Renqiang Bao , Shilong Zhao , Baolin Wang
DOI: 10.1088/0022-3727/42/10/105111
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摘要: A transparent Yb3+ doped oxyfluoride glass ceramic containing LiYF4 nanocrystals was developed. Under 940 nm laser diode pumping, blue luminescence emission around 480 through cooperative upconversion from pairs of ions obtained. Cooperative enhanced due to precipitated in the matrix observed. The mechanisms were proposed based on spectral, kinetic and pump power dependence analyses. Moreover, Stark level splitting near-infrared radiation shifting, owing change a site crystal site, also discovered.