Figure 3
From: The reduction of surface plasmon losses in quasi-suspended graphene
Near-field imaging of the graphene on NS-SiO2, performed at λ1 = 10 μm
(a) Near-field optical image. The yellow arrow marks an optical ring structure around a single “extra-high” NS dot beneath graphene. (b) Corresponding cross-section along the dotted yellow line in image (a) Green and pink dotted lines mark GP field magnitudes at the first maximum close to graphene edges and inside the inner part of the graphene flake. Red arrows highlight a distance between first and second maxima of GP field distribution.
