Optical fiber pH sensor based on gold nanoparticles into polymeric coatings

被引：4

作者：

Socorro, A. B. ^{[1
]}

Rivero, Pedro J. ^{[1
]}

Hernaez, M. ^{[1
]}

Goicoechea, J. ^{[1
]}

Matias, I. R. ^{[1
]}

Arregui, F. J. ^{[1
]}

机构：

[1] Univ Publ Navarra, Dept Elect & Elect Engn, Nanostruct Opt Devices Lab, Pamplona 31006, Spain

来源：

SMART SENSORS, ACTUATORS, AND MEMS VII; AND CYBER PHYSICAL SYSTEMS | 2015年 / 9517卷

关键词：

Optical fiber pH sensor; lossy mode resonance; localized surface plasmon resonance; gold nanoparticles; HUMIDITY; BIOSENSOR;

D O I：

10.1117/12.2179970

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：

A pH optical fiber sensor based on electromagnetic resonances generated in a waveguide-nanocoating interface is presented here. The incorporation of gold nanoparticles (AuNPs) into polymeric thin films has been deeply studied and the deposition of these thin-films onto an optical fiber core has been performed in order to obtain a resonance-based optical fiber device. The presence of both the metal nanoparticles and the polymers in the coating allows the generation of two different electromagnetic resonances: localized surface plasmon resonance (LSPR) and lossy mode resonance (LMR). These phenomena can be simultaneously observed in the transmitted spectrum. The resultant device has shown a high sensitivity to pH changes from pH 4.0 to pH 6.0, with a large dynamical range and a very fast response

引用

页数：6

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