He C, Chen X, Sawanobori N, Sun Y, Chen L, Meng C
Analytical and Testing Center, Beijing Normal University, 100875 Beijing.
Guang Pu Xue Yu Guang Pu Fen Xi. 2001 Apr;21(2):147-50.
Optical-absorption spectrum of Tm3+ ions in oxyfluoride glass ceramic was measured, from which the measured oscillator strengths were obtained. The Judd-Ofelt intensity parameters omega t (t = 2, 4, 6) were determined by a best fit of the calculated and measured oscillator strengths, the rms deviation was 3.9 x 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.
测量了氟氧化物玻璃陶瓷中Tm3+离子的光吸收光谱，从中获得了测量的振子强度。通过对计算和测量的振子强度进行最佳拟合，确定了Judd-Ofelt强度参数ωt（t = 2、4、6），均方根偏差为3.9×10(-7)。利用强度参数给出了一些激发态的预测光谱参数，如自发辐射跃迁速率、辐射寿命、分支比和积分发射截面。这些光谱参数与一些激光材料相当，其中一些更好。
