摘要
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.
源语言 | 英语 |
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页(从-至) | 3615-3621 |
页数 | 7 |
期刊 | Applied Optics |
卷 | 50 |
期 | 20 |
DOI | |
出版状态 | 已出版 - 10 7月 2011 |