Comparison between one layer and bilayer surface plasmon resonance optical fiber chemical sensor

Surface Plasmon Resonance (SPR) - based plastic optical fiber has been provided as a sensor to estimate the refractive index and then the concentration of specific chemical samples. Two configurations were suggested for the design. The first was through using a single layer of gold with a thickness...

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Main Author: Soudad S. Ahmed
Format: Article
Language:English
Published: University of Kufa 2020-12-01
Series:Journal of Kufa-Physics
Subjects:
Online Access:https://journal.uokufa.edu.iq/index.php/jkp/article/view/7441
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author Soudad S. Ahmed
author_facet Soudad S. Ahmed
author_sort Soudad S. Ahmed
collection DOAJ
description Surface Plasmon Resonance (SPR) - based plastic optical fiber has been provided as a sensor to estimate the refractive index and then the concentration of specific chemical samples. Two configurations were suggested for the design. The first was through using a single layer of gold with a thickness of about 40nm deposited on a 10mm portion in the middle of plastic optical fiber. In the second configuration, a bilayer is deposited on the fiber. This bilayer consisted of a gold layer with a thickness of about 30 nm and an aluminum layer with a thickness of about 30 nm. Both of these configurations are utilized as chemical sensors. The resonance wavelength for the bilayer-based sensor was higher than that of the single-layer sensor for all studied chemical samples. The highest resonance wavelength was for the salt-water solution with a concentration of 30%. For the salt-water solution with a concentration of 30%, the resonance wavelength with the bilayer-based sensor was 568nm while it was 540nm with the single-layer sensor.
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spelling doaj.art-b06767a549094352a6cd8c642ab05c352024-03-16T01:18:15ZengUniversity of KufaJournal of Kufa-Physics2077-58302312-66712020-12-01120210.31257/2018/JKP/2020/120205Comparison between one layer and bilayer surface plasmon resonance optical fiber chemical sensorSoudad S. Ahmed Surface Plasmon Resonance (SPR) - based plastic optical fiber has been provided as a sensor to estimate the refractive index and then the concentration of specific chemical samples. Two configurations were suggested for the design. The first was through using a single layer of gold with a thickness of about 40nm deposited on a 10mm portion in the middle of plastic optical fiber. In the second configuration, a bilayer is deposited on the fiber. This bilayer consisted of a gold layer with a thickness of about 30 nm and an aluminum layer with a thickness of about 30 nm. Both of these configurations are utilized as chemical sensors. The resonance wavelength for the bilayer-based sensor was higher than that of the single-layer sensor for all studied chemical samples. The highest resonance wavelength was for the salt-water solution with a concentration of 30%. For the salt-water solution with a concentration of 30%, the resonance wavelength with the bilayer-based sensor was 568nm while it was 540nm with the single-layer sensor. https://journal.uokufa.edu.iq/index.php/jkp/article/view/7441surface Plasmon resonance plastic optical fiber chemical sensor
spellingShingle Soudad S. Ahmed
Comparison between one layer and bilayer surface plasmon resonance optical fiber chemical sensor
Journal of Kufa-Physics
surface Plasmon resonance
plastic optical fiber
chemical sensor
title Comparison between one layer and bilayer surface plasmon resonance optical fiber chemical sensor
title_full Comparison between one layer and bilayer surface plasmon resonance optical fiber chemical sensor
title_fullStr Comparison between one layer and bilayer surface plasmon resonance optical fiber chemical sensor
title_full_unstemmed Comparison between one layer and bilayer surface plasmon resonance optical fiber chemical sensor
title_short Comparison between one layer and bilayer surface plasmon resonance optical fiber chemical sensor
title_sort comparison between one layer and bilayer surface plasmon resonance optical fiber chemical sensor
topic surface Plasmon resonance
plastic optical fiber
chemical sensor
url https://journal.uokufa.edu.iq/index.php/jkp/article/view/7441
work_keys_str_mv AT soudadsahmed comparisonbetweenonelayerandbilayersurfaceplasmonresonanceopticalfiberchemicalsensor