【摘要】 <正>近年来,Al₂O₃:Ti³⁺晶体被发现是一种很好的激光晶体.1984年,Albreeht等报道了这种晶体的荧光谱和400～900 nm范围的吸收光谱.同年,用这种晶体制成了660～980 nm的宽带调谐激光器.在Raman光谱研究方面,1967年Porto等用50W的Ar³⁺离于激光,做了五种配置下Al₂O₃:Ti³⁺晶体Raman光谱,发现了全部7根Raman线.本文报道创.Al₂O₃:Ti³⁺晶体Raman光谱实验研究的新结果.主要实验设备有:Spex 1403型激光Raman光谱仪,波长范围为10000～30000cm^-1, 分辨率为0.15cm^-1.激发光源用Spootra Physics 2020型的氩离子激光器.更多还原

【Abstract】 Some new results of Raman spectra of Al2O3:Ti3+ crystals are reported. It was experimentally found that Al2O3 crystals doped with Ti3+ ions "would increase the intensity of two Raman peaks which correspond to external vibrations of eigenmodes respectively. Based on the model of photon-electron coupling, an explanation to this phenomenon is given.更多还原