袁宁^1,2,3, 刘大宇^1,2, 孙宏雪^1,2, 张德龙^1,2
AuthorsHTML:袁宁^1,2,3, 刘大宇^1,2, 孙宏雪^1,2, 张德龙^1,2
AuthorsListE:Yuan Ning^{1, 2, 3}，Liu Dayu^{1, 2}，Sun Hongxue^{1, 2}，Zhang Delong^{1, 2}
AuthorsHTMLE:Yuan Ning^{1, 2, 3}，Liu Dayu^{1, 2}，Sun Hongxue^{1, 2}，Zhang Delong^{1, 2}
Unit:1. 天津大学精密仪器与光电子工程学院，天津 300072；2. 天津大学教育部集成光电子重点实验室，天津 300072；3. 天津中德应用技术大学基础课部，天津 300350
Unit_EngLish:1. School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China
2. Key Laboratory of Optoelectronic Information Technology of Ministry of Education, Tianjin University, Tianjin 300072, China
3. Basic Co
Abstract_Chinese:本文研究了基于Er³⁺掺杂SrGdGa₃O₇晶体在488 nm氙灯泵浦下的下转化绿色荧光530 nm和550 nm强度比的温度传感器的温度特性．实验装置是由1台氙灯、1个平凸透镜、3个滤波片和1个硅光电池等元器件组成．Er³⁺掺杂SrGdGa₃O₇(Er：SrGdGa₃O₇)晶体在光功率仅为5 mW的488 nm氙灯泵浦下实现温度表征．在温度296～380 K区间，530 nm和550 nm波段荧光强度比的相对灵敏度为6.4×10^-3～10.6×10^-3 K^-1．通过光电池测量方法重复上述实验，实验结果与光谱仪测量方法的一致．研究结果表明，Er：SrGdGa₃O₇在温度传感方面是一种有应用前景的基质材料．
Abstract_English:This paper presents an optical temperature sensor based on the thermal effect of fluorescence intensity ratio of 488-nm downconverted green 530- and 550-nm emissions of Er³⁺-doped SrGdGa₃O₇(Er：SrGdGa₃O₇)single crystal. To achieve that, a simple experimental setup has been developed that consists of a Xe lamp, a plano-convex lens, three interference filters and a Si-photocells. The sensor performance can be characterized just under the excitation of(5,mW)488,nm light. The temperature sensitivity of fluorescence intensity ratio of the 530 nm and 550 nm emissions is 6.4×10^-3-10.6×10^-3 K^-1 within the considered temperature range 296—380 K. In addition, the experiments were repeated using a photocell and the consistent results of temperature characteristics were obtained. Those results indicate that the Er：SrGdGa₃O₇7 single crystal is a promising host material for optical temperature sensing.
Keyword_Chinese:荧光强度比; 下转换绿色荧光; Er：SrGdGa₃O₇单晶; 温度特性
Keywords_English:fluorescence intensity ratio; downconverted green fluorescence; Er：SrGdGa₃O₇ single crystal; temperature characteristics

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