Novel SPR Sensor Based on MIM-based Waveguide and an Asymmetric Cross-shaped Resonator
Source abstract
Abstract
In recent years, sensing structures based on Fano resonances have become a hot research topic. In this study, a coupled structure, composed of a metal baffle metal-insulator-metal waveguide and an asymmetric cross-shaped resonator, is designed. By changing the coupling distance and asymmetry of the cross-shaped resonator, their influences on the transmission and electromagnetic field distribution were calculated and systematically analyzed. The results showed a good linear relationship between the center wavelength of the Fano transmission peak and the refractive index of the filled material. The sensor sensitivity can reach 795 nm/RIU. The prospective applications of this waveguide structure are promising. The structure can also provide a future reference for the design of a microwave waveguide structure.
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Research context
OpenAlex topics: Plasmonic and Surface Plasmon Research · Metamaterials and Metasurfaces Applications · Photonic Crystals and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
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