Evaluation of the tapered PMMA fiber sensor response due to the ionic interaction within electrolytic solutions

A tapered plastic multimode fiber (PMMA) optical sensor is proposed and demonstrated for continuous monitoring of solutions based on different concentration of sodium chloride and glucose in deionized water The tapered PMMA fiber was fabricated using an etching method involving deionized water and a...

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Main Authors: Batumalay, M., Rahman, H.A., Kam, W., Ong, Y.S., Ahmad, F., Zakaria, Rozalina, Harun, Sulaiman Wadi, Ahmad, Harith
Format: Article
Published: Taylor & Francis 2014
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Online Access:http://eprints.um.edu.my/14306/
https://doi.org/10.1080/09500340.2013.850541
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spelling my.um.eprints.143062018-10-09T05:25:14Z http://eprints.um.edu.my/14306/ Evaluation of the tapered PMMA fiber sensor response due to the ionic interaction within electrolytic solutions Batumalay, M. Rahman, H.A. Kam, W. Ong, Y.S. Ahmad, F. Zakaria, Rozalina Harun, Sulaiman Wadi Ahmad, Harith Q Science (General) TK Electrical engineering. Electronics Nuclear engineering A tapered plastic multimode fiber (PMMA) optical sensor is proposed and demonstrated for continuous monitoring of solutions based on different concentration of sodium chloride and glucose in deionized water The tapered PMMA fiber was fabricated using an etching method involving deionized water and acetone to achieve a waist diameter and length of 0.45 mm and 10 mm, respectively, and was used to investigate the effect of straight, U-shape, and knot shape against concentration for both sodium chloride and glucose. The results show that there is a strong dependence of the electrolytic and non-electrolytic nature of the chemical solutions on the sensor output. It is found that the sensitivity of the sodium chloride concentration sensor with the straight tapered fiber probe was 0.0023 mV/%, which was better than the other probe arrangements of U-shape and knot. Meanwhile, the glucose sensor performs with the highest sensitivity of 0.0026 mV/wt % with the knot-shaped tapered fiber probe. In addition, a tapered PMMA probe which was coated by silver film was fabricated and demonstrated using calcium hypochlorite (G70) solution. The working mechanism of such a device is based on the observed increment in the transmission of the sensor that is immersed in solutions of higher concentration. As the concentration varies from 0 ppm to 6 ppm, the output voltage of the sensor increases linearly from 3.61 mV to 4.28 mV with a sensitivity of 0.1154 mV/ppm and a linearity of more than 99.47%. The silver film coating increases the sensitivity of the proposed sensor due to the effective cladding refractive index, which increases with the coating and thus allows more light to be transmitted from the tapered fiber. Taylor & Francis 2014-01-16 Article PeerReviewed Batumalay, M. and Rahman, H.A. and Kam, W. and Ong, Y.S. and Ahmad, F. and Zakaria, Rozalina and Harun, Sulaiman Wadi and Ahmad, Harith (2014) Evaluation of the tapered PMMA fiber sensor response due to the ionic interaction within electrolytic solutions. Journal of Modern Optics, 61 (2). pp. 154-160. ISSN 0950-0340 https://doi.org/10.1080/09500340.2013.850541 DOI:10.1080/09500340.2013.850541
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
TK Electrical engineering. Electronics Nuclear engineering
spellingShingle Q Science (General)
TK Electrical engineering. Electronics Nuclear engineering
Batumalay, M.
Rahman, H.A.
Kam, W.
Ong, Y.S.
Ahmad, F.
Zakaria, Rozalina
Harun, Sulaiman Wadi
Ahmad, Harith
Evaluation of the tapered PMMA fiber sensor response due to the ionic interaction within electrolytic solutions
description A tapered plastic multimode fiber (PMMA) optical sensor is proposed and demonstrated for continuous monitoring of solutions based on different concentration of sodium chloride and glucose in deionized water The tapered PMMA fiber was fabricated using an etching method involving deionized water and acetone to achieve a waist diameter and length of 0.45 mm and 10 mm, respectively, and was used to investigate the effect of straight, U-shape, and knot shape against concentration for both sodium chloride and glucose. The results show that there is a strong dependence of the electrolytic and non-electrolytic nature of the chemical solutions on the sensor output. It is found that the sensitivity of the sodium chloride concentration sensor with the straight tapered fiber probe was 0.0023 mV/%, which was better than the other probe arrangements of U-shape and knot. Meanwhile, the glucose sensor performs with the highest sensitivity of 0.0026 mV/wt % with the knot-shaped tapered fiber probe. In addition, a tapered PMMA probe which was coated by silver film was fabricated and demonstrated using calcium hypochlorite (G70) solution. The working mechanism of such a device is based on the observed increment in the transmission of the sensor that is immersed in solutions of higher concentration. As the concentration varies from 0 ppm to 6 ppm, the output voltage of the sensor increases linearly from 3.61 mV to 4.28 mV with a sensitivity of 0.1154 mV/ppm and a linearity of more than 99.47%. The silver film coating increases the sensitivity of the proposed sensor due to the effective cladding refractive index, which increases with the coating and thus allows more light to be transmitted from the tapered fiber.
format Article
author Batumalay, M.
Rahman, H.A.
Kam, W.
Ong, Y.S.
Ahmad, F.
Zakaria, Rozalina
Harun, Sulaiman Wadi
Ahmad, Harith
author_facet Batumalay, M.
Rahman, H.A.
Kam, W.
Ong, Y.S.
Ahmad, F.
Zakaria, Rozalina
Harun, Sulaiman Wadi
Ahmad, Harith
author_sort Batumalay, M.
title Evaluation of the tapered PMMA fiber sensor response due to the ionic interaction within electrolytic solutions
title_short Evaluation of the tapered PMMA fiber sensor response due to the ionic interaction within electrolytic solutions
title_full Evaluation of the tapered PMMA fiber sensor response due to the ionic interaction within electrolytic solutions
title_fullStr Evaluation of the tapered PMMA fiber sensor response due to the ionic interaction within electrolytic solutions
title_full_unstemmed Evaluation of the tapered PMMA fiber sensor response due to the ionic interaction within electrolytic solutions
title_sort evaluation of the tapered pmma fiber sensor response due to the ionic interaction within electrolytic solutions
publisher Taylor & Francis
publishDate 2014
url http://eprints.um.edu.my/14306/
https://doi.org/10.1080/09500340.2013.850541
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score 13.211869