Figure 3
The structure and simulation results of type 2 graphene plasmonic metasurface. (a) The top view of the metasurface, which shows that the metasurface is made up of \(30\times 30\) elements. The width \(w\) is unchanged, and \(l\) is gradually increased along the \(+x\) direction; meanwhile, \(w\) is gradually decreased and \(l\) is unchanged along the \(+y\) direction. (b) The reflected phases distributions, which demonstrate that \({\phi }_{{E}_{y}}(x)\) and \({\phi }_{{E}_{x}}(y)\) are gradually decreased and increased along the \(+x\) direction and the \(+y\) direction, respectively. (c) The electric-field distributions of TM reflected waves deflected to the direction of (\({\varphi }_{{E}_{x}}\,=\,{270}^{{\rm{o}}}\), \({\theta }_{{E}_{x}}\,=-{23.6}^{{\rm{o}}}\)). (d) The electric-field distributions of TE reflected waves deflected to the direction of (\({\varphi }_{{E}_{y}}\,=\,{0}^{{\rm{o}}}\), \({\theta }_{{E}_{y}}\,=\,{23.6}^{{\rm{o}}}\)). (e) Normalized far-field patterns of TM reflected waves, in the YOZ plane. (f) Normalized far-field patterns of TE reflected waves, in the XOZ plane.
