摘要
基于多孔玻璃烧结的方法制备了钕离子掺杂和钕铝共掺高硅氧玻璃,测量了掺钕高硅氧玻璃的吸收光谱、荧光光谱和荧光寿命.利用Judd-Ofelt理论计算得到了钕离子在高硅氧玻璃中的强度参数,计算并对比了掺钕高硅氧玻璃和钕铝共掺高硅氧玻璃的理论荧光寿命、受激发射截面和发光量子效率.讨论了钕铝共掺高硅氧玻璃中铝离子的掺入对玻璃发光性质的影响.通过与其他掺钕氧化物玻璃和一些商用硅酸盐玻璃的主要光谱性质的比较,掺钕高硅氧玻璃显示了较好的光谱性质,有可能成为一种应用于高能和高频激光领域的新型激光材料.
Nd-doped and Nd-Al-codoped high silica glasses were obtained by sintering porous glass impregnated with Nd^3＋ and Al^3＋ ions. The absorption, fluorescence spectra and fluorescence lifetime of Nd-doped and Nd-Al-codoped high silica glasses were measured. The intensity parameters Ω （t = 2, 4, 6）, fluorescence lifetime, radiative quantum efficiency and stimulated emission cross section were calculated by Judd-Ofeh theory. The effect of aluminum codoping on the fluorescence and structural properties of Nd-doped silica glass has been discussed. By comparing the spectroscopic properties with other Nd-doped oxide glasses and commercial silicate glasses, this Nd-doped high silica glass is likely to be a promising laser material for use in high power and high repetition rate lasers.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第12期7023-7028,共6页
Acta Physica Sinica
基金
国家自然科学基金(批准号:50125258
60377040)
上海市纳米技术专项基金(批准号:0532nm042)资助的课题.~~
