物理学报2012，Vol.61Issue(11)：401-406,6.
γ辐照对掺Er硅酸盐玻璃吸收和发光特性的影响
Gamma radiation effects on absorption and emission properties of erbium-doped silicate glasses
摘要
Abstract
A series of Er-doped silicate glasses is prepared by a conventional melting method under normal processing conditions,and the effects of gamma-ray radiation on absorption and emission properties of all samples are investigated.The radiation-induced darkening causes a strong broad optical absorption band that has a maximum around 400 nm and extends to the near infrared region.The point defects generated in the silicate matrix by irradiation around the Er3＋ ion favor the activation of non-radiative relaxation channels thus modifying the photoluminescence quantum efficiency from specific excited levels,such as those emitting at 520 and 650 nm. Photobleaching effects are observed in Er-doped silicate glasses pumped by 980 nm LD at room temperature.关键词
掺Er硅酸盐玻璃/γ辐照/辐致损耗/荧光寿命Key words
Er-doped silicate glasses/gamma-ray radiation/radiation-induced absorption/fluorescence lifetime分类
化学化工引用本文复制引用
盛于邦,杨旅云,栾怀训,刘自军,李进延,戴能利..γ辐照对掺Er硅酸盐玻璃吸收和发光特性的影响[J].物理学报,2012,61(11):401-406,6.基金项目
国家高技术研究发展计划（批准号：2011AA030201）资助的课题. （）
