计算了Er3+掺杂的氟氧化物玻璃材料MFT的J-O参数,进而获得了一些能级间跃迁的跃迁几率、分支比、及寿命等数据.测量了室温下Er3+的较强的两个绿色发射2H11/2、4S3/2→4I15/2及红色发射4F9/2→4I15/2的激发光谱,观测了2H11/2、4S_3/2→4I15/2跃迁荧光强度随着温度的变化,测量了室温下这两个跃迁衰减曲线,计算了这两个能级的无辐射跃迁几率及量子效率.
The optical transitions intensity parameters of Er3+ in MFT glass were calculated by using the J-O theory. The transition probabilities,branching ratios and lifetimes of Er3+ ion were obtained. The excitation spectra were measured monitored at intense green of 2H11/2,4S3/2→4I15/2transitions and red fluorescence of 4F9/2→4I15/2 transition of Er3+ ion. The fluorescence intensity variation with temperature for 2H11/2,4S3/2→4I15/2 transitions was observed.The fluorescence decay of 2H11/2,4S3/2→4I15/2 transitions was measured and the quantum efficiency and non-radiative Transition rates were calculated.
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