Hybrid WGM-SPP modes in metal-coated microcylinder

Yadong Miao; Zhuo Zhang; Mi Li; Yu Xiang; Yunchong Peng; Qiang Chen; Yuejiang Song

doi:10.1117/12.2247800

4 November 2016 Hybrid WGM-SPP modes in metal-coated microcylinder

Yadong Miao, Zhuo Zhang, Mi Li, Yu Xiang, Yunchong Peng, Qiang Chen, Yuejiang Song

Proceedings Volume 10027, Nanophotonics and Micro/Nano Optics III; 100270F (2016) https://doi.org/10.1117/12.2247800
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

Based on electromagnetic eigenequation in silver-coated microcylinder, we study its mode characteristics and sensing characteristics, including dispersion relation, quality factor (Q factor), sensitivity (S) and detection limit (DL). We find hybrid WGM-SPPs modes in energy distribution and mode coupling phenomenon in dispersion curve. In the vicinity of mode coupling point, hybrid TM-SPPs modes (or supermodes) have both high Q factor and high surface enhancement factor. Meanwhile the hybrid modes have high refractive sensitivity and figure of merit (FoM), which enables potential applications in chemical and biological sensing.

Citation Download Citation

Yadong Miao, Zhuo Zhang, Mi Li, Yu Xiang, Yunchong Peng, Qiang Chen, and Yuejiang Song "Hybrid WGM-SPP modes in metal-coated microcylinder", Proc. SPIE 10027, Nanophotonics and Micro/Nano Optics III, 100270F (4 November 2016); https://doi.org/10.1117/12.2247800

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