Er^(3+)和Yb^(3+)共掺碲酸盐玻璃的光谱性质  

Spectroscopic Properties of Er^(3+) and Yb^(3+) Codoped Tellurite Glasses

作　　者：杨建虎[1] 戴世勋[1] 胡丽丽[1] 姜中宏[1] 李顺光[1] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800

出　　处：《光学学报》2003年第2期210-215,共6页Acta Optica Sinica

基　　金：国家自然科学基金 ( 6 0 2 0 70 0 6 );上海市光科技项目( 0 2 2 2 6 10 46 )资助课题。

摘　　要：研究了Er3+ 和Yb3+ 共掺碲酸盐玻璃的吸收和荧光光谱性质 ,分析了碲酸盐玻璃中Er3 + 的上转换发光机制 ,应用Judd Ofelt理论计算了玻璃的强度参量Ωt(t =2 ,4,6 ) ,分别为Ω2 =4.74× 10 - 2 0 cm2 ,Ω4=1.46× 10 - 2 0 cm2 ,Ω6 =0 .6 4× 10 - 2 0 cm2 ,计算了Er3+ 离子的自发跃迁几率、荧光分支比 ,应用McCumber理论计算了受激发射截面 ,并比较了Er3 + 在不同基质玻璃中的光谱特性。Absorption spectra, emission spectra of Er3+ and Yb3+ codoped tellurite glasses were studied. Er3+ upconversion mechanism in tellurite glass was analyzed. The Judd-Ofelt strength parameters Ω1 (t=2,4,6), which are Ω2=4.74×10-20 cm2,Ω4=1.46×10-20 cm2, Ω6=0.64×10-20 cm2 respectively, were calculated by Judd-Ofeld theory. Spontaneous radiative rate and branch ratios of each energy levels of Er3+ ions were given. Stimulated emission cross section was calculated by McCumber theory, and was compared with other host glasses.

关 键 词：ER^3+ YB^3+ 共掺 碲酸盐玻璃 光谱性质 JUDD-OFELT理论 铒离子掺杂 镱离子掺杂 

分 类 号：TQ171.112[化学工程—玻璃工业]