Ho^(3+)/Yb^(3+)共掺杂氟锗酸盐玻璃中红外光谱性质研究  

Study on Mid-Infrared Spectral Properties of Ho^(3+)/Yb^(3+) Co-Doped Fluorogermanate Glasses

作　　者：钱国权[1] 唐国武[1] 钱奇[1] 陈敢新[2] 

机构地区：[1]华南理工大学光通信材料研究所发光材料与器件国家重点实验室,广东广州510640 [2]湖南人文科技学院信息学院,湖南娄底417000

出　　处：《光学学报》2016年第6期222-228,共7页Acta Optica Sinica

基　　金：湖南省自然科学基金(10JJ6087);湖南省教育厅项目(12A074)

摘　　要：研究了Ho^(3+)/Yb^(3+)掺杂的氟锗酸盐玻璃在980nm激光二极管抽运下的中红外2.0μm、2.85μm和可见上转换发光特性以及两种稀土离子之间的能量转移机理。在氟锗酸盐玻璃中掺杂1%(物质的量分数)Ho_2O_3和9%Yb_2O_3的样品中,获得了增强的中红外2.0μm和2.85μm发光。测得Ho^(3+)的2.0μm荧光寿命为6.19ms,理论计算得到Ho^(3+)在2023nm处最大发射截面面积为6.6×10-21 cm^2。研究结果表明,Ho^(3+)/Yb^(3+)掺杂的氟锗酸盐玻璃是一种合适的中红外2.0μm和2.85μm激光材料。Emission properties of mid-infrared at 2.0 μm and 2.85μm, and visible up-conversion as well as energy transfer mechanism between two rare earth ions, Ho^3＋ and Yb^3＋, are studied in Ho^3＋/Yb^3＋ co-doped fluorogermanate glasses pumped by a 980 nm laser diode. Enhanced mid-infrared 2.0 μm and 2.85 μm emission is obtained in fluorogermanate glass samples which is co-doped with 1 % Ho2 O3 and 9% Yb2 O3 （mole fractions）. The measured decay lifetime of Ho^3＋ is 6.19 ms, and the theoretically calculated maximum emission cross section at 2023 nm is about 6.6 × 10^（- 21） cm^2 The results indicate that Ho^3＋/Yb^3＋ co-doped fluorogermanate glasses are suitable for mid-infrared 2.0 μm and 2.85 μm emission.

关 键 词：材料 Ho3+/Yb3+ 中红外发光 能量传递 

分 类 号：O433[机械工程—光学工程] TB34[理学—光学]