Fluorescence Thermometer Application of Cr Doped Spinel Crystals

Author

Someya, Junko ; Nojiri, Chika ; Aizawa, Hiroaki ; Katsumata, Tooru ; Komuro, Shuji ; Morikawa, Takitaro

Author_Institution

Sensor Photonics Res. Center, Toyo Univ., Saitama

fYear

2006

Firstpage

1582

Lastpage

1585

Abstract

Temperature dependences of peak intensity and peak intensity ratio of photoluminescence from Cr doped spinel sensor are evaluated for fluorescence thermometer applications. Peak intensity and intensity ratio of PL from Cr doped spinel sensor varies with temperature. Peak intensity ratio of PL at=699 and 688 nm, I₆₉₉/I₆₈₈, which increases linearly with temperature from 298 to 473 K, is found to be suitable for temperature measurement instead of PL lifetime. Spinel thermo-sensor is proposed successfully based on temperature dependence of PL intensity ratio instead of PL lifetime

Keywords

chromium; fluorescence; magnesium compounds; photoluminescence; thermometers; 298 to 473 K; Cr doped spinel crystal sensor; MgAl₂O₄:Cr; PL lifetime; fluorescence thermometer application; photoluminescence; spinel thermo-sensor; temperature dependences; Chromium; Crystals; Fluorescence; Photoluminescence; Plasma temperature; Powders; Temperature dependence; Temperature measurement; Temperature sensors; Thermal sensors; Fluorescence thermometer; intensity ratio; peak intensity; photoluminescence; spinel;

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.2006.315510

Filename

4109218