Refractive Plasmonic Sensor Based on Fano Resonances in an O

发布时间：2023-03-23 05:35

　　A symmetric plasmonic structure consisting of metal-insulator-metal waveguide, groove and slot cavities is studied, which supports double Fano resonances deriving from two different mechanisms. One of the Fano resonances originates from the interference between the resonances of groove and slot cavities, and the other comes from the interference between slot cavities. The spectral line shapes and the peaks of the double Fano resonances can be modulated by changing the length of the slot cavities...

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