1 March 2011 Application to temperature sensor based on Er3 +-doped barium borosilicate glasses at visible band
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Abstract
The process of preparing Er3 +-doped barium borosilicate glass samples with different dopant concentrations using a high-temperature sintering technique is discussed. Under a 978-nm semiconductor laser excitation, the energy transfer from 2H11/2 to 4I15/2 and 4S3/2 to 4I15/2 caused by the transitions of Er3 + ions yields a 534- and a 549-nm green fluorescence. The relationship between the absolute temperature T and the fluorescence intensity ratio R of these two up-conversion photoluminescence spectra is discussed and fitted to the exponential function R = 1.782exp ( − 328/T) in the temperature range of 298 to 698 K. The sensitivity of the samples descends monotonously from 0.00219 to 0.00075 K−1 with the temperature increase from 298 to 698 K. The data are of undoubted repeatability, and the proposed doped glass is suitable for sensitive, high-temperature measurement.
© (2011) Society of Photo-Optical Instrumentation Engineers (SPIE)
Chun-Hua Jiang, Chun-Hua Jiang, Yao Liu, Yao Liu, Shuang Zhang, Shuang Zhang, Tuo Cao, Tuo Cao, Wen-Yan Luan, Wen-Yan Luan, } "Application to temperature sensor based on Er3 +-doped barium borosilicate glasses at visible band," Optical Engineering 50(3), 034404 (1 March 2011). https://doi.org/10.1117/1.3554739 . Submission:
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