Abstract
We investigate the use of whispering gallery mode (WGM) optical microbottle resonator (MBR) as a sensor for liquid formaldehyde sensor. An MBR fabricated via the "soften-and-compress" method with a diameter of 190 μm was optically excited by using a non-adiabatic 2 μm optical microfibre and employed to measure formaldehyde with concentrations of between 0% and 5%, with the results compared with the performance of a bare microfibre. The MBR sensor was found to have a sensitivity of 4.397 dB/% with 90 % linearity and were generally outperforms the bare microfiber sensor by a wide margin.
Original language | English |
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Article number | 012021 |
Journal | Journal of Physics: Conference Series |
Volume | 1151 |
Issue number | 1 |
DOIs | |
Publication status | Published - 18 Mar 2019 |
Event | Newton Researcher Links Workshop 2018: Bio-Photonics For Medical Technologies - Malacca, Malaysia Duration: 23 Jul 2018 → 25 Jul 2018 |