鏑离子掺杂铝锗酸盐玻璃的高效可见荧光发射

Intense Visible Transition Emissions in Dysprosium Ions Doped Aluminum Germanate Glasses

制备了高质量鏑离子掺杂铝锗酸盐玻璃。对玻璃的吸收、荧光光谱和激发光谱展开了测试与分析。紫外光激发下,Dy^(3+)离子掺杂铝锗酸盐玻璃放出明亮的黄白色光,发射光谱由峰值为479nm蓝光和574nm绿光发射峰组成。激发光谱表明:氩离子激光器和紫外、蓝色激光二极管及发光二极管是Dy^(3+)掺杂铝锗酸盐玻璃有效的泵浦光源。

Dy^3＋ -doped aluminum germanate glasses have been fabricated and characterized optically. The ab- sorption and fluorescence spectra of this glass were measured and analyzed. In the Dy^3＋ -doped aluminum germanate glasses, Dy^3＋ emit intense warm yellow lights under the excitation of long-wave UV and blue lights. Absorption and excitation spectra indicated that commercial UV and blue laser diodes, blue and bluish-green light-emitting diodes and Ar^＋ optical laser are powerful excitation sources for Dy^3＋ visible fluorescence in the glass.