Spectroscopic properties of Er in a oxyfluoride glass and upconversion and temperature sensor behaviour of Er/Yb-codoped oxyfluoride glass |
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| Authors: | Li Feng Boyuan Lai Jing Wang Guoqiang Du Qiang Su |
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| Affiliation: | aInstitute of Materials Science and Engineering, Shijiazhuang University of Economics, Shijiazhuang 050031, PR China;bState Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-Sen (Zhongshan) University, Guangzhou 510275, PR China |
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| Abstract: | Spectroscopic properties of Er3+-singly doped SiO2––BaF2–ZnF2 glass have been investigated on the basis of the Judd–Ofelt theory. Upconversion emissions in Er3+/Yb3+-codoped SiO2–BaF2–ZnF2 glass have been observed under 980 nm excitation. The temperature dependence of fluorescence intensity ratio corresponding to the two thermally coupled levels (2H11/2, 4S3/2) has been studied and it is concluded based on the results that the method can be possibly applied for temperature sensing. |
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| Keywords: | Upconversion Temperature sensing Rare earth Glass |
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