Fabrication and characterization of micro fluidic based fiber optic refractive index sensor

Hamid, I.S.L. Abdul and Kamil, Y. Mustapha and Manaf, A. Abd and Mahdi, M.A. (2017) Fabrication and characterization of micro fluidic based fiber optic refractive index sensor. Sensing and Bio-Sensing Research, 13. pp. 70-74. ISSN 2214-1804

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Abstract

A refractive index sensorwas proposed by using 3 dimension (3D) grayscale lithography technique. Optical fiber with taper diameter of 12 μm was embedded in a closed microfluidic channel. Taper area of optical fiber is in floating condition at the center of micro channel. Grayscale variation range used for this sensor was 70%–74% and thickness variation 430 μm–694 μm was achieved. The dimension of the sensor was 7.5 cm in length and 2 cm in width. Fabricated sensor was characterized with air condition and solution concentration from 0.1 M to 1 M. A sensitivity of 1457 nm/RIU is achieved. The measured results show a good repeatability and low temperature cross-sensitivity.

Item Type: Article
Subjects: T Technology > TK Electrical Engineering. Electronics. Nuclear Engineering > TK1-9971 Electrical engineering. Electronics. Nuclear engineering
Divisions: Kampus Kejuruteraan (Engineering Campus) > Pusat Pengajian Kejuruteraaan Elektrik & Elektronik (School of Electrical & Electronic Engineering) > Article
Depositing User: Mr Noorazilan Noordin
Date Deposited: 21 Feb 2018 09:20
Last Modified: 21 Feb 2018 09:20
URI: http://eprints.usm.my/id/eprint/39097

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