Johari, Md Ashadi Md and Abdul Khudus, Muhammad Imran Mustafa and Jali, Mohd Hafiz and Al Noman, Abdullah and Harun, Sulaiman Wadi (2019) Whispering gallery modes on optical micro-bottle resonator for humidity sensor application. Optik, 185. pp. 558-565. ISSN 0030-4026, DOI https://doi.org/10.1016/j.ijleo.2019.03.111.
Full text not available from this repository.Abstract
We investigate the use of a class of whispering gallery mode optical resonators, namely, optical microbottle resonators (MBR) as a relative humidity (RH) sensor. The MBR is fabricated via the so-called “soften-and-compress” method to create a bulge (bottle) structure with a bottle diameter D b =190μm, stem diameter of D s =125μm and bottle length of L b =182μm. The MBR is then optically excited by using a 2 μm optical microfiber and was found to have a Q-factor of >10 4 . The MBR was then employed as a humidity sensor with a RH range of between 40%–80% and the performance is compared with a no-MBR microfiber. The MBR RH sensor was found to have a sensitivity 0.0487 dB/%, linearity >90% and P-value >10 5 and is superior to the no-MBR microfiber in all measured parameters. The MBR RH sensor was also found to have good repeatability and stability over a period of 60 s. The wavelength shifted for the MBR is 0.03 nm greater than no-MBR. © 2019 Elsevier GmbH
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Microfiber optic; Optical Micro-resonator; Humidity sensor |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering Faculty of Science > Department of Physics |
| Depositing User: | Mr. Mohd Safri |
| Date Deposited: | 17 Mar 2020 04:28 |
| Last Modified: | 17 Mar 2020 04:28 |
| URI: | http://eprints.um.edu.my/id/eprint/16726 |
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