Fig. 3.
Localization of bulk plasmon states. We show the simulated electric-field distributions induced on the graphene superlattice without (a) and with a defect (b) upon excitation by a directional point source (red arrow at the center) with a magnetic field of 4 T. The photon energy is at the Dirac point (E p = 56.37 meV). The parameters of the superlattice are the same as in Fig. 2 (L = 600 nm, width W = 200 nm and Fermi energy E F = 0.2 eV)