1. Crystal growth and optical properties of LuYAG:Ce single crystal
- Author
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Di, Juqing, Xu, Xiaodong, Xia, Changtai, Li, Dongzhen, Zhou, Dahua, Wu, Feng, and Xu, Jun
- Subjects
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CRYSTAL growth , *OPTICAL properties of yttrium aluminum garnet , *SINGLE crystals , *CRYSTAL optics , *LUTETIUM , *X-ray diffraction , *COMPARATIVE studies , *CRYSTAL structure - Abstract
Abstract: Crystals of Ce3+-doped (Lu x Y1−x )3Al5O12 (LuYAG) have been grown and studied by X-ray powder diffraction, emission spectroscopy, excitation spectroscopy and X-ray excited fluorescence spectroscopy. The X-ray powder diffraction pattern revealed that the as-grown LuYAG:Ce crystal possessed the garnet structure. Compared with Ce3+-doped Y3Al5O12 (YAG), the absorption bands associated with the 4f–5d transition shifted to shorter wavelengths, the emission band that originated from a transition from the lowest 5d level to the 2F ground state of the Ce3+ ions shifted to the blue, which was probably due to a larger Stokes shift of the emission, and the reduction of relative intensity of antisite defect emission in the X-ray excited fluorescence spectra revealed that introducing Lu ions into YAG could reduce the antisite defect. [Copyright &y& Elsevier]
- Published
- 2012
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