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Growth and spectroscopy of Dy doped in ZnWO4 crystal |
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| Authors: | Fugui Yang Chaoyang Tu Hongyan Wang Yanping Wei Zhenyu You Guohua Jia Jianfu Li Zhaojie Zhu Xiuai Lu Yan Wang |
| Affiliation: | aFujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002 Fujian, PR China bGraduated School of Chinese Academy of Sciences, 100039 Beijing, PR China |
| Abstract: | Single-crystal ZnWO4:Dy3+ was grown by Czochralski technique. The XRD, absorption spectra as well as fluorescence spectrum are investigated and the Judd–Ofelt intensity parameters Ω2, Ω4, Ω6 are obtained to be 7.76 × 10?20 cm2, 0.57 × 10?20 cm2, 0.31 × 10?20 cm2, respectively. Calculated radiative transition rate, branching ratios and radiative lifetime for different transition levels of ZnWO4:Dy3+ crystals are presented. Fluorescence lifetime of 4F9/2 level is 158 μs and quantum efficiency is 66%.The most intense fluorescence line at 575 nm correlative with transition 4F9/2 → 6H13/2 is potentially for application of yellow lasers. |
| Keywords: | A1 Spectroscopy A2 Czochralski method B1 ZnWO4:Dy3+ |
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