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

fYear

2006

Firstpage

1586

Lastpage

1589

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;

fLanguage

English

Publisher

ieee

Conference_Titel

SICE-ICASE, 2006. International Joint Conference

Conference_Location

Busan

Print_ISBN

89-950038-4-7

Electronic_ISBN

89-950038-5-5

Type

conf

DOI

10.1109/SICE.2006.315511

Filename

4109219