Optical fiber humidity sensor based on surface plasmon resonance in the infra-red region

被引：20
|
作者：
Hernaez, M. [1 ]
Zamarreno, C. R. [1 ]
Matias, I. R. [1 ]
Arregui, F. J. [1 ]
机构：
[1] Publ Univ Navarra UPNA, Sensor Res Lab, Dept Elect & Elect Engn, Pamplona, NA, Spain
来源：
SENSORS & THEIR APPLICATIONS XV | 2009年 / 178卷
关键词：
Humidity sensor; Indium tin oxide; Layer by Layer; Plasmon resonance; Optical fiber; LIGHT; FABRICATION; FILMS;
D O I：
10.1088/1742-6596/178/1/012019
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：
Here, the fabrication and characterization of a novel optical fiber humidity sensor based on surface plasmon resonance (SPR) in the infra-red region is presented. Firstly, an indium tin oxide (ITO) coating is deposited onto a 200 mu m core diameter optical fiber causing the shift of the SPR wavelength to the infra-red region. Then, the LbL method is used to deposit a polymeric coating onto the ITO layer. The variations in the external humidity originated changes in the thickness and refractive index of the polymeric coating and hence in the resonance.
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页数：5
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