TY - JOUR
T1 - Microfiber loop resonator for formaldehyde liquid sensing
AU - Jali, Mohd Hafiz
AU - Rahim, Hazli Rafis Abdul
AU - Hamid, Sana Sulaiman
AU - Johari, Md Ashadi Md
AU - Yusof, Haziezol Helmi Mohd
AU - Thokchom, Siddharth
AU - Harun, Sulaiman Wadi
AU - Khasanah, M.
AU - Yasin, M.
N1 - Publisher Copyright:
© 2019 Elsevier GmbH
PY - 2019/11
Y1 - 2019/11
N2 - This work employed the whispering gallery mode (WGM) of microfiber loop resonator (MLR) for formaldehyde (CH2O) liquid sensing application. A significant sensing response to different concentrations of formaldehyde liquid from 0% to 5% was observed due to the surface absorption and changeable refractive index resulting in different light attenuation in the silica microfiber. As the concentration increases, the output power of the MLR decreased linearly from −18.9 dB m to −36.2.dBm with sensitivity increased by a factor of 2.5 as compared to straight microfiber (SmF). As for resolution, the MLR improved by a factor of 3.28 as compared to SmF.
AB - This work employed the whispering gallery mode (WGM) of microfiber loop resonator (MLR) for formaldehyde (CH2O) liquid sensing application. A significant sensing response to different concentrations of formaldehyde liquid from 0% to 5% was observed due to the surface absorption and changeable refractive index resulting in different light attenuation in the silica microfiber. As the concentration increases, the output power of the MLR decreased linearly from −18.9 dB m to −36.2.dBm with sensitivity increased by a factor of 2.5 as compared to straight microfiber (SmF). As for resolution, the MLR improved by a factor of 3.28 as compared to SmF.
KW - Formaldehyde
KW - Microfiber loop resonator
KW - Straight microfiber
KW - Whispering gallery mode
UR - http://www.scopus.com/inward/record.url?scp=85070354460&partnerID=8YFLogxK
U2 - 10.1016/j.ijleo.2019.163174
DO - 10.1016/j.ijleo.2019.163174
M3 - Article
AN - SCOPUS:85070354460
SN - 0030-4026
VL - 196
JO - Optik
JF - Optik
M1 - 163174
ER -