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, R., Harun, S.W., Ahmad, H.
Format:	Article
Published:	Taylor & Francis 2014
Subjects:	Q Science (General) TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://www.tandfonline.com/doi/abs/10.1080/09500340.2013.850541 http://www.tandfonline.com/doi/abs/10.1080/09500340.2013.850541

id	um-14306
recordtype	eprints
spelling	um-143062017-11-09T08:15:05Z 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, R. Harun, S.W. Ahmad, H. 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 http://www.tandfonline.com/doi/abs/10.1080/09500340.2013.850541 Batumalay, M.; Rahman, H.A.; Kam, W.; Ong, Y.S.; Ahmad, F.; Zakaria, R.; Harun, S.W.; Ahmad, H. (2014) Evaluation of the tapered PMMA fiber sensor response due to the ionic interaction within electrolytic solutions. Journal of Modern Optics <http://eprints.um.edu.my/view/publication/Journal_of_Modern_Optics.html>, 61 (2). pp. 154-160. ISSN 0950-0340 http://eprints.um.edu.my/14306/
repository_type	Digital Repository
institution_category	Local University
institution	University Malaya
building	UM Research Repository
collection	Online Access
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, R. Harun, S.W. Ahmad, H. 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, R. Harun, S.W. Ahmad, H.
author_facet	Batumalay, M. Rahman, H.A. Kam, W. Ong, Y.S. Ahmad, F. Zakaria, R. Harun, S.W. Ahmad, H.
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://www.tandfonline.com/doi/abs/10.1080/09500340.2013.850541 http://www.tandfonline.com/doi/abs/10.1080/09500340.2013.850541
first_indexed	2018-09-06T06:21:42Z
last_indexed	2018-09-06T06:21:42Z
_version_	1610838077212721152

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

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