New enhancement method on sensing ability of micro resonator bottle structure using polymer materials drop-casting coating technique

• Main Authors: Mohd Zabidi, Muhammad Izzat Zakwan, Ahmad, Aminah, Md Johari, Md Ashadi, Harun, Mohamad Haniff, Azahar, Arman Hadi, Khalid, Ahmad Khudzairi
• Format: Article
• Language: English
• Published: National Institute of Optoelectronics 2023
• Online Access: http://eprints.utem.edu.my/id/eprint/27288/2/0255328122023625.PDF; http://eprints.utem.edu.my/id/eprint/27288/; https://oam-rc.inoe.ro/articles/new-enhancement-method-on-sensing-ability-of-micro-resonator-bottle-structure-using-polymer-materials-drop-casting-coating-technique/fulltext
• Institution: Universiti Teknikal Malaysia Melaka

This experimental paper proposes a new method to enhance the ability of microbottle resonator (MBR) sensor through polymethyl methacrylate (PMMA) and polyvinyl alcohol (PVA). The bottle resonator custom used the “soften-and-compress” technique from SMF28 silica fiber, then coated with PMMA and PVA. Three MBR used are non-coated MBR, MBR-PMMA and MBR-PVA. The coated and non-coated MBRs were then characterized via taper microfiber and achieved to have Q-factor for all, MBR-PVA is at the top with. The MBRs were then experienced as ethanol gas sensors, with the gas percentages used between 1% to 5% ppm. The sensitivity, linearity and stability are measured parameters via transmitted spectral and wavelength shift. The findings show that the MBR-PVA tremendously outraged every observed parameter. Here, the coating may influence the MBR performance as a gas sensor.