Er/Yb共掺硅酸盐玻璃的光致发光  

Absorption and photoluminescence properties Er/Yb co-doped soda-silicate glasses

作　　者：李善锋[1] 张庆瑜[1] 

机构地区：[1]大连理工大学三束材料改性国家重点实验室,大连116024

出　　处：《物理学报》2005年第11期5462-5467,共6页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:50240420656)资助的课题.~~

摘　　要：采用固相反应方法,制备了Er3+离子浓度为0.5at.%,Yb掺杂浓度范围为0.0—6.0at.%的Er/Yb共掺激光玻璃,并对激光玻璃的吸收光谱和光致荧光光谱进行了分析.研究结果显示,Yb3+掺杂对Er3+在980nm附近的吸收起到了非常显著的增强作用.在980nm的激光抽运下,激光玻璃在1530nm处的光致发光强度随着Yb离子浓度的增加而先增大后减小,当Yb3+离子浓度为Er3+离子浓度6倍时光致发光强度达到最大值.同时还发现了Yb3+对Er3+的光致荧光光谱的展宽作用,并讨论了荧光光谱的展宽机理.Er/Yb co-doped soda-silicate glasses with 0.5 at.% Er and various concentrations Yb were fabricated. The absorption and the photoluminescence （PL） spectra were measured and analyzed. The PL intensity of the Er/Yb co-doped soda-silicate glasses is enhanced d times approximately, and the optimum Yb concentration for the PL intensity at 1536 nm is 3.0 at.%. The PL spectrum becomes broader with the increase of Yb concentration, up to a FWHM of 80 nm at 6.0 at.% Yb. The relation between absorption and PL spectra, together with the mechanism of PL broadening, has been addressed.

关 键 词：Er/Yb共掺玻璃 光致发光 吸收光谱 ER^3+ 光致发光 Yb掺杂 硅酸盐玻璃 共掺 Yb^3+掺杂 离子浓度 激光玻璃 荧光光谱 

分 类 号：O482.31[理学—固体物理]