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Er3+ –Y3+-Codoped Al 2O3 for High-Temperature Sensing

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4 Author(s)
B. Dong ; Dalian Nat. Univ., Dalian ; X. J. Wang ; C. R. Li ; D. P. Liu

Optical high-temperature sensing using the fluorescence intensity ratio (FIR) technique of green up-conversion emissions at 523 and 546 nm in Er3+-Y3+-codoped Al2O3 was studied in a wide temperature range of 295 K-973 K. The maximum sensitivity and the temperature resolution derived from the FIR technique are approximately 0.0035 K-1 and 0.3 K, respectively, which indicated that Er3+-Y3+-codoped Al2O3 plays an important role for applications in the optical high-temperature sensing.

Published in:

IEEE Photonics Technology Letters  (Volume:20 ,  Issue: 2 )