Title :
Thermo-Sensor Based on Peak Intensity Ratio of Photoluminescence from Cr Doped YAG Crystals
Author :
Kaneda, Miki ; Orihara, Kaoru ; Aizawa, Hiroaki ; Katsumata, Tooru ; Komuro, Shuji ; Morikawa, Takitaro
Author_Institution :
Fac. of Eng., Toyo Univ., Saitama
Abstract :
Temperature dependence of peak intensity and peak intensity ratio of photoluminescence (PL) from garnet crystal sensor is evaluated for fluorescence thermometer application. Peak intensity of PL from YAG sensor decreases exponentially with temperature. Intensity ratio of PL peaks at 690nm, 688nm and 688nm, I678/I689, I707/I689, I725/I689, increases linearly with temperature from 299 to 473K. Cr doped YAG is potentially useful sensor material in fluorescence thermometer based on temperature dependences of PL intensity, and PL intensity ratio
Keywords :
chromium; fibre optic sensors; photoluminescence; spectral methods of temperature measurement; thermometers; yttrium compounds; 299 to 473 K; YAG crystals; YAG:Cr; YAl5O12:Cr; fiber-optic fluorescence thermometer; garnet crystal sensor; photoluminescence; sensor material; thermosensor; Chromium; Crystals; Fluorescence; Garnets; Photoluminescence; Powders; Temperature dependence; Temperature sensors; Thermal sensors; X-ray diffraction; Fluorescence thermometer; garnet; peak intensity; photoluminescence;
Conference_Titel :
SICE-ICASE, 2006. International Joint Conference
Conference_Location :
Busan
Print_ISBN :
89-950038-4-7
Electronic_ISBN :
89-950038-5-5
DOI :
10.1109/SICE.2006.315511
