▎ 摘　　要

In this paper, the phenomena of extraordinary optical transmission and Fano resonance in the hybrid graphene-metal gratings are studied. The results show that the Fano resonance in this hybrid graphenemetal grating can be enhanced by parameter adjustment and optimization. The two most effective control parameters are the proportion of metal width in the hybrid graphenemetal grating and the Fermi level of graphene. The above calculations do not involve the effects of the surface plasmon excitation, so the results should be independent of plasmon excitation, and the transmission enhancement effect is the result of structural Fabry-Perot-type interference.