发光学报2016，Vol.37Issue(12)：1471-1478,8.DOI:10.3788/fgxb20163712.1471
波导适用型铝锗酸盐玻璃中铥离子上转换荧光光子输出与量子产率定量
Upconversion Fluorescence Photon Generation and Quantum Yield Quantification of Tm3+ in Waveguide-typed Aluminum Germanate Glasses
摘要
Abstract
Tm3+/Yb3+ doped aluminum germanate glasses adapting for K+-Na+ ion-exchanged waveguide were fabricated. Absolute characteristic parameters for upconversion ( UC) fluorescence of glass samples were measured by integrating sphere coupled with fiber optic spectrometer under the excitation of 975 nm pump laser. The measurement and calculation results show that the effective diffusion coefficient of K+-Na+ thermal ion-exchange is 0. 070 μm2/min when Tm3+/Yb3+ doped aluminum germanate glasses are immersed in KNO3 molten salt at 380 ℃, indicating that the K+-Na+ ion-exchange process is controllable. Tm3+ in aluminum germanate glasses emits 477 nm blue and 806 nm near-infrared ( NIR) fluorescence, and the NIR emission plays a dominant role. The absolute fluorescence parameter is identified as a positive correlation with laser power density. When the power density is 1 482 W/cm2 , the emission spectral power, emission photon and quantum yield for blue three-photon UC fluorescence are 269 μW, 6. 46 × 1014/s and 1. 43 × 10 -4 , and the ones for NIR two-photon UC fluorescence are 4 024 μW, 1. 63 × 1016/s and 3. 61 × 10 -3 , respectively. The absolute characterization for UC fluorescence of Tm3+ in waveguide-typed aluminum germanate glasses provides a valuable reference in developing photoelectronic devices and laser materials.关键词
波导适用型铝锗酸盐玻璃/铥离子/上转换荧光光子定量/量子产率Key words
waveguide-adaptive aluminum germanate glasses/Tm3+ ions/upconversion fluorescence photon quanti-tative/quantum yields分类
化学化工引用本文复制引用
朱彩玲,林海,王志强,赵昕..波导适用型铝锗酸盐玻璃中铥离子上转换荧光光子输出与量子产率定量[J].发光学报,2016,37(12):1471-1478,8.基金项目
国家自然科学基金(61275057)；辽宁省自然科学基金(2015020187)资助项目 （61275057）
