Optica Open
Browse
Research on the Tooth-shaped Nanoscal.pdf (1.07 MB)

Research on the Tooth-shaped Nanoscale Refractive Index Sensor Structure in Optical Fano Resonance

Download (1.07 MB)
preprint
posted on 2023-10-04, 09:10 authored by Shubin Yan, Lei Li, Feng Liu, Yi Zhang, Yang Cui, Chuanhui Zhu, Taiquan Wu, Qizhi Zhang, Guowang Gao
In this paper, the tooth-shaped nanoscale refractive index sensor structure is designed, which consists of a metal-insulator-metal (MIM) waveguide and an inner and outer tooth-shaped ring cavity with an embedded single ellipse (IOTRC-ESEE). The performance and structure of the overall nanoscale sensor are comprehensively evaluated by employing the finite element method (FEM) and coupled mode theory (CMT). The impact of various geometric parameters on sensor characteristics was rigorously assessed. The investigation ascertained that the thickness of the dielectric layer significantly influences the optical Fano resonance, emerging as a crucial parameter in its effectuation. The study finally shows that IOTRC-ESEE has a sensitivity of 3060 nm/RIU, a Figure of Merit (FOM) of 60, and possesses high sensitivity and structural complexity.

History

Funder Name

National Natural Science Foundation of China (No.62374148,No.62003315,No. 61975189); Natural Science Foundation of Zhejiang Province (No. LD21F050001); Key Research and Development Program of Zhejiang Province (No. 2021C03019,No. RA2101); Zhejiang University of Water Resources and Electric Power (No. xky2022032)

Preprint ID

109388

Usage metrics

    Categories

    Keywords

    the dielectric layerthe optical Fano resonancethe tooth-shaped nanoscale refractive index sensor structure

    Licence

    Optica Publishing Group Non-Exclusive License

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC