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Ti3+离子掺杂浓度与Ti:Al2O3晶体的光谱畸变
Concentration dependent spectral distortion of Ti: A12O3 crystals
【摘要】 通过室温下掺杂浓度为0.03~0.45Wt-%范围的Ti:Al2O3晶体的偏振激发光谱,荧光光谱和吸收光谱的测量,从实验上确信,Ti3+在Al2O3基质晶体中不易形成Ti3+离子对。并且发现,随着Ti3+离子掺杂浓度的提高,偏振激发光谱发生了(l)肩/峰强度比增加和(2)长波展宽现象,而相应波段的吸收光谱却未发现这种浓度效应导致的线型畸变。
【Abstract】 Concentration-dependent polarzed excitation,fluorescence and absorption spectra of Ti:Al2o3 crystals were measured at room temperature with the Ti3+ ion doped levels from 0.03 wt-% to 0.45 wt-%. Line shape distortion in polarized excitation spectra, indicated as the increasing of the intensity ratio of the shoulder to Peak and spectral broadering at longer wavelength side,were found as the Ti3+ ion concentration increased, whereas such phenomena did not emerge in the polarized absorption spectra at the same band.It is experimentally convinced that no Ti3+ ion pairs were formed even for the highestly doped sample in our experiment.
- 【文献出处】 中国激光 ,CHINESE JOURNAL OF LASERS , 编辑部邮箱 ,1995年05期
- 【分类号】O734
- 【被引频次】3
- 【下载频次】73