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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。
By measuring the polarization excitation spectra, fluorescence spectra and absorption spectra of Ti: Al 2 O 3 crystals with a doping concentration in the range of 0.03-0.45 Wt% at room temperature, it is experimentally believed that Ti 3 + ions are not easily formed in the Al 2 O 3 crystal Correct. It was also found that with the increase of doping concentration of Ti3 + ion, (1) increase of shoulder / peak intensity ratio and (2) long wave broadening occurred in the polarization excitation spectrum, but the absorption spectrum of the corresponding band did not find this concentration effect Linear distortion.