Design and Optimization of Liquid Core Optical Ring Resonator for Refractive Index Sensing
This study performs a detailed theoretical analysis of refractive index (RI) sensors based on whispering gallery modes (WGMs) in liquid core optical ring resonators (LCORRs). Both TE-and TM-polarized WGMs of various orders are considered. The analysis shows that WGMs of higher orders need thicker walls to achieve a near-zero thermal drift, but WGMs of different orders exhibit a similar RI sensing performance at the thermostable wall thicknesses. The RI detection limit is very low at the thermostable thickness. The theoretical predications should provide a general guidance in the development of LCORR-based thermostable RI sensors. © 2011 Optical Society of America.
N. Lin et al., "Design and Optimization of Liquid Core Optical Ring Resonator for Refractive Index Sensing," Applied Optics, Optical Society of America, Jan 2011.
The definitive version is available at http://dx.doi.org/10.1364/AO.50.003615
Mechanical and Aerospace Engineering
Electrical and Computer Engineering
Article - Journal
© 2011 Optical Society of America, All rights reserved.