Effect of tapering diameters with microbottle resonator for formaldehyde (CH2O) liquid sensing

Md Ashadi Md Johari; Muhammad Imran Mustafa Abdul Khudus; Mohd Hafiz Bin Jali; M.S. Maslinda; Ummu Umairah Mohamad Ali; Sulaiman Wadi Harun; A.H. Zaidan; R. Apsari; M. Yasin

Sensing and Bio-Sensing Research (Sep 2019)

Effect of tapering diameters with microbottle resonator for formaldehyde (CH2O) liquid sensing

Md Ashadi Md Johari,
Muhammad Imran Mustafa Abdul Khudus,
Mohd Hafiz Bin Jali,
M.S. Maslinda,
Ummu Umairah Mohamad Ali,
Sulaiman Wadi Harun,
A.H. Zaidan,
R. Apsari,
M. Yasin

Affiliations

Md Ashadi Md Johari: Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; Faculty of Engineering Technology, Universiti Teknikal Malaysia Melaka, 76100 Melaka, Malaysia
Muhammad Imran Mustafa Abdul Khudus: Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
Mohd Hafiz Bin Jali: Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; Faculty of Electrical Engineering, Universiti Teknikal Malaysia Melaka, 76100 Melaka, Malaysia
M.S. Maslinda: Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
Ummu Umairah Mohamad Ali: Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
Sulaiman Wadi Harun: Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
A.H. Zaidan: Department of Physics, Faculty of Science and Technology, Airlangga University, Surabaya (60115), Indonesia
R. Apsari: Department of Physics, Faculty of Science and Technology, Airlangga University, Surabaya (60115), Indonesia
M. Yasin: Department of Physics, Faculty of Science and Technology, Airlangga University, Surabaya (60115), Indonesia; Corresponding author.

Journal volume & issue: Vol. 25

Abstract

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In this study, we demonstrate the effect of the microbottle resonator (MBR) based on whispering gallery modes (WGMs) with two different diameters of tapered microfibre and its experiment with the formaldehyde (CH2O) liquid sensor. The MBR with the bottle diameter, Db, of 190 μm was categorized by many spectra of transmission modes. Then, the MBR was energized through two tapered microfibres with different diameters, 8 μm and 10 μm. Differences between the two tapered microfibres with the MBR were determined for different concentration levels of sensing liquid. In addition, p-values and stability levels of the two tapered microfibres were calculated. According to the comparison results, the 8 μm tapered microfiber has a much better competency than the 10 μm tapered microfiber when using the MBR. Keywords: Whispering gallery mode, Optical microbottle resonator, Tapered microfiber, Quality factor, Formaldehyde liquid

Published in Sensing and Bio-Sensing Research

ISSN: 2214-1804 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: http://www.journals.elsevier.com/sensing-and-bio-sensing-research/

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