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测试了Ho:YAG和Ho:YLF晶体的吸收话和荧光谱,计算Ho~(3+)离子的振子强度参数f_JJ~t[c],辐射跃迁几率地A_J,J’荧光辐射寿命τJ[c],并与实验测得的荧光辐射寿命τJ[e]及振子强度的实验值f_J[e]比较。应用跃迁速率方程计算得出对应2.1μm的荧光强度最大的掺杂离子Ho~(3+)的最佳浓度分别为~2.5%和~1%左右。讨论了YAG和YLF作为芬Ho~(3+)的基质晶体优点。
The absorption and fluorescence spectra of Ho: YAG and Ho: YLF crystals were tested, and the oscillator strength parameters f_JJ ~ t [c] of Ho ~ (3+) ions were calculated. The lifetime of the radiation transitions A_J and J ’ And compared with experimentally measured fluorescence emission lifetime τJ [e] and experimental value f_J [e] of oscillator strength. The optimum concentration of doped ions Ho ~ (3+) corresponding to a maximum fluorescence intensity of 2.1μm was calculated to be ~ 2.5% and ~ 1%, respectively, using the transition rate equation. The advantages of YAG and YLF as the matrix crystals of Fen Ho 3+ are discussed.