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  • Title: Graphene Multiple Fano Resonances Based on Asymmetric Hybrid Metamaterial.
    Author: Yan Z, Zhang Z, Du W, Wu W, Hu T, Yu Z, Gu P, Chen J, Tang C.
    Journal: Nanomaterials (Basel); 2020 Dec 02; 10(12):. PubMed ID: 33276469.
    Abstract:
    We theoretically investigate multiple Fano resonances in an asymmetric hybrid graphene-metal metamaterial. The multiple Fano resonances emerge from the coupling of the plasmonic narrow bonding and antibonding modes supported by an in-plane graphene nanoribbon dimer with the broad magnetic resonance mode supported by a gold split-ring resonator. It is found that the Fano resonant mode with its corresponding dark mode of the antibonding mode in the in-plane graphene nanoribbon dimer is only achieved by structural symmetry breaking. The multiple Fano resonances can be tailored by tuning the structural parameters and Fermi levels. Active control of the multiple Fano resonances enables the proposed metamaterial to be widely applied in optoelectronic devices such as tunable sensors, switches, and filters.
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