First step towards an interferometric and localized surface plasmon fiber optic sensor
| Autor: | Dag Roar Hjelme, Harald Ian Muri, Andon Bano |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Nanoplasmonics
Optical fiber Materials science 02 engineering and technology 010402 general chemistry 01 natural sciences law.invention law Fiber optic sensors Smart hydrogel Electronic Optical and Magnetic Materials Surface plasmon resonance Electrical and Electronic Engineering Hydrogel LSPR Multiparametric sensor Electronic Optical and Magnetic Materials Condensed Matter Physics Computer Science Applications 1707 Computer Vision and Pattern Recognition Applied Mathematics business.industry Surface plasmon 021001 nanoscience & nanotechnology 0104 chemical sciences Interferometry Fiber optic sensor Optoelectronics 0210 nano-technology business Refractive index Fabry–Pérot interferometer Localized surface plasmon |
| Zdroj: | Proceedings of SPIE, the International Society for Optical Engineering |
| Popis: | We present a first demonstration of a novel multi-parameter fiber optic (FO) sensor concept based on gold nanoparticles (GNP) embedded in a stimuli-responsive hydrogel material. A hemispherical hydrogel immobilized on the optical fiber end-face forms a low-finesse Fabry-Perot (FP) interferometer. The GNPs exhibit local surface plasmon resonance (LSPR) that is sensitive towards the refractive index of the surrounding environment, while the stimuli-responsive hydrogel is sensitive towards specific chemical compounds. We evaluate the quality of the interferometric and LSPR signal as a function GNP concentration and of hydrogel swelling degree stimulated by ethanol solutions. The GNPs shows to have little influence on the visibility of the FP etalon, while LSPR of GNP shows to be sensitive towards the surface refractive index rather than bulk refractive index. This demonstration shows that the sensor concept has the potential to be used in applications such as an intravenous two-parametric real-time sensor for medical purpose. © 2017 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. |
| Databáze: | OpenAIRE |
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