Samarium Ions Doped Yttrium Aluminium Garnet Glass Ceramics
Sm3+ doped YAG glass ceramics containing single phase of YAG micro-crystals have been obtained by heat-treating the aluminosilicate precursor glasses.The YAG crystals grow with several preferred orientations and a dominant one (444) in the matrix,and present microcrystal sizes in the range of 3~15μm.The pilotaxitic texture existed in internal network of the YAG glass ceramics can increase yield strength and tensile strength of the sample effectively.Typical visible transition emissions of Sm3+ have been observed in the YAG glass ceramics under the excitation of short-wavelength visible light,and the spectral intensity ratio between the electric dipole 4G5/2→6H9/2 and the magnetic dipole 4G5/2→6H5/2 transitions is lower than the values reported in the optical glasses specifying the enhanced symmetric nature in the Sm3+ doped YAG glass ceramics.The obvious Stark splitting exhibited in emission spectrum manifests that rare-earth ions have been incorporated into YAG lattices.
Samarium ions Microcrystal growth Stark splitting YAG glass ceramics
Jie Yang Xiao Liu Bin Zhai Zhiqiang Wang Xin Zhao Hai Lin
School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China
国际会议
广州
英文
216-219
2012-11-16（万方平台首次上网日期，不代表论文的发表时间）