Point temperature sensor based on green upconversion emission in an Er:ZBLALiP microsphere

Point temperature sensor based on green upconversion emission in an Er:ZBLALiP microsphere

Thermal properties and spectroscopic properties of a new kind heavy fluoride glass Er:ZBLALiP microsphere were presented in this paper. Based on the thermalization effects between the upper levels responsible for green fluorescence at 522 and 546 nm in Er:ZBLALiP, we propose a new optical temperatur...

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Veröffentlicht in:Sensors and actuators. A, Physical Physical, 2003-11, Vol.108 (1), p.187-192
Hauptverfasser: Cai, Z.P., Xu, H.Y.
Format: Artikel
Sprache:eng
Schlagworte:
Er:ZBLALiP
Exact sciences and technology
General equipment and techniques
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Modeling
Optical point sensing
Physics
Sensors (chemical, optical, electrical, movement, gas, etc.)
remote sensing
Spectroscopy
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Zusammenfassung:Thermal properties and spectroscopic properties of a new kind heavy fluoride glass Er:ZBLALiP microsphere were presented in this paper. Based on the thermalization effects between the upper levels responsible for green fluorescence at 522 and 546 nm in Er:ZBLALiP, we propose a new optical temperature sensing using micrometer-sized spherical cavity. The dependence of green emission intensity ratio (GEIR) on the surrounding temperature from 300 to 100 K was experimentally determined, which allows us to calibrate the sensing function of green intensity ratio versus temperature. Such a point temperature sensor is applicable for a large temperature range from 150 to 850 K with a resolution of the order of 1 K.
ISSN:0924-4247
1873-3069
DOI:10.1016/j.sna.2003.07.008