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A surface plasmon temperature sensor based on E7 liquid crystal using angle interrogation method
Journal of Electromagnetic Waves and Applications ( IF 1.3 ) Pub Date : 2021-08-02 , DOI: 10.1080/09205071.2021.1960901
Ali Abdulkhaleq Alwahib 1 , Shatha mezher hasan 2 , Kadhim A. Hubeatir 1
Affiliation  

ABSTRACT

A prism-based surface plasmon resonance (SPR) sensor supported water/gas-based liquid crystal (LC) E7 is presented. A gold layer was internally attached to the chamber filled with LC. The results demonstrated that LC's resonance angle increases with the increasing temperature, and the variation can be detected by the absorption and angle shift of the plasmonic dip. The modeling results presented that the refractive index increases with increasing temperature at the variation from 15°C to 85°C. The temperature sensitivity was started at 0.06 degrees/°C at 15°C and reached the maximum value from 35 to 50 degrees/°C. The liquid crystal type E7 experimental results were compared with simulation results from 15°C to 85°C of MLC-9200-000, MLC9200-100, MLC-6608, TL-216, and E44. The water/LC-based SPR shows angle shift and absorption shift compared to gas/LC-based SPR. The SPR curve's sharpness was enhanced, but low angle shift and no absorption shift were recognized.



中文翻译:

基于E7液晶的表面等离子体温度传感器,采用角度询问法

摘要

与基于气体/LC 的 SPR 相比,基于水/LC 的 SPR 显示出角位移和吸收位移。SPR 曲线的锐度得到增强,但可以识别出低角度偏移和没有吸收偏移。

更新日期:2021-08-02
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