Title :
Er3+ –Y3+-Codoped Al 2O3 for High-Temperature Sensing
Author :
Dong, B. ; Wang, X.J. ; Li, C.R. ; Liu, D.P.
Author_Institution :
Dalian Nat. Univ., Dalian
Abstract :
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.
Keywords :
alumina; erbium; fluorescence; optical sensors; photoluminescence; spectral methods of temperature measurement; temperature sensors; yttrium; Al2O3:Er,Y; FIR technique; fluorescence intensity ratio; green up-conversion emissions; optical high temperature sensing; temperature 295 K to 973 K; wavelength 523 nm; wavelength 546 nm; Erbium; Finite impulse response filter; Fluorescence; Glass; Optical sensors; Physics; Silicon compounds; Stimulated emission; Temperature distribution; Temperature sensors; Al$_{2}$O$_{3}$ ; Er$^{3+}$–Y $^{3+}$; high-temperature sensing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.912547
