Figure 6
From: Strong tunable absorption enhancement in graphene using dielectric-metal core-shell resonators
Maximum achievable graphene absorption efficiencies for the solid silver nanospheres (a) and the DMCSRs (b) wrapped by graphene with different layers at four different wavelengths of λ = 455 nm, 610 nm, 875 nm, and 1195 nm. (c) Enhancement factors of the graphene absorption efficiencies at the wavelengths of λ = 455 nm, 610 nm, 875 nm, and 1195 nm.
