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

被引：62

作者：

Cai, ZP ^{[1
]}

Xu, HY

机构：

[1] Xiamen Univ, Dept Phys, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Dept Elect Engn, Xiamen 361005, Peoples R China

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2003年 / 108卷 / 1-3期

关键词：

optical point sensing; spectroscopy; Er : ZBLALiP; modeling;

D O I：

10.1016/j.sna.2003.07.008

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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. (C) 2003 Elsevier B.V. All rights reserved.

引用

收藏

页码：187 / 192

页数：6

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