Author:
Ali Ummu Umairah Mohamad,Johari Ahmad Ashadi,Jusoh Zulzilawati,Harun Sulaiman Wadi
Abstract
Abstract
This study explores into the influence of whispering gallery mode (WGMs) on single and dual microsphere resonator (MSR) as a humidity sensor which can confine light by continuous internal reflection. The construction of the device is simple, and it has a low cost as MSR is made of silica material with a high refractive index. MSR coupling tapered optical fibers with size 5µm to the surfaces of single and two microspheres is demonstrated as a relative humidity (RH) sensor. The Q-factor was measured 7.754 × 105 dBm for single MSR while for dual MSR, Q-factor is 7.765 × 105 dBm. When sensitivity, linearity, and repeatability were analyzed based on transmitted power, the results were conclusively excellent for the performance of the double MSR.
Subject
Computer Science Applications,History,Education
Reference25 articles.
1. Measuring the charge of a single dielectric nanoparticle using a high-Q optical microresonator;Chen;Physical Review Applied,2016
2. Review of applications of whispering-gallery mode resonators in photonics and nonlinear optics;Matsko;IPN Progress Report,2005
3. Sensing and lasing applications of whispering gallery mode microresonators;Zheng;Opto-Electronic Advances,2018
4. Integrated humidity sensor based on SU-8 polymer microdisk microresonator;Eryürek;Sensors and Actuators B: Chemical,2017
5. Optical bottle microresonators;Sumetsky;Progress in Quantum Electronics,2019