摘要
用熔融急冷法制备了Tm3+(1.0wt%)离子掺杂Ge30Ga5Se65和Ge30Ga5S65(mol%)玻璃,测试和分析了玻璃的吸收光谱和荧光光谱特性。根据吸收光谱,应用Judd-Ofelt理论计算分析了Tm3+在上述玻璃样品中的强度参数Ωt(t=2,4,6)以及Tm3+各能级的自发跃迁几率、荧光分支比和辐射寿命等光谱参数。
Tm3＋-doped chalcogenide glasses in Gea0Ga5Se65 and Ge30GasS65 （mol%） system were synthesized by melt-quenching technique. The properties of the glasses including absorption spectra and emission spectra were measured under 800 nm excitation. According to the Judd-Ofelt theory and absorption spectrum, the intensity parameterΩt （t= 2,4,6）, the spontaneous radiative transition A, fluorescence branching ratio fl and radiative lifetime rad of Tm3＋ were calculated.
出处
《半导体光电》
CAS
CSCD
北大核心
2013年第2期264-267,276,共5页
Semiconductor Optoelectronics
基金
国家自然科学基金项目(61008041)
关键词
Tm3+
硫系玻璃
光谱特性
光谱参数
Tm3＋
chalcogenide glass
spectral characteristic
spectral parameter
