摘要
根据Tm掺杂的氟氧化物玻璃陶瓷的吸收光谱 ,用Judd Ofelt理论计算了强度参量 ,并由此计算了激发能级的自发辐射跃迁几率、辐射寿命、荧光分支比和积分发射截面等光谱参量。
Optical-absorption spectrum of Tm 3+ ions in oxyfluoride glass ceramic was measured,from which the measured oscillator strengths were obtained.The Judd-Ofelt intensity parameters Ω t(t=2,4,6) were determined by a best fit of the calculated and measured oscillator strengths,the rms deviation was 3.9×10 -7 .Some predicted spectroscopic parameters of the excited states,like the spontaneous radiative transition rate,radiative lifetime,branching ratio and integrated emission cross section were given using the intensity parameters.The spectroscopic parameters were comparable with some laser materials,and some of them were better.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2001年第2期147-150,共4页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金! (1 98740 33)
中科院物理所光物理实验室开放课题
中科院半导体所集成光电子学国家重点联合实验室开放课题
