Fig. 3From: Angle-Insensitive Broadband Absorption Enhancement of Graphene Using a Multi-Grooved MetasurfaceNormalized distributions of electric and magnetic fields of the unit cell of the structure at the wavelengths of 450 nm for (a) and (b); 600 nm for (c) and (d); 750 nm for (e) and (f). The inserted white dash area is the enlarged view of the grooves, and red arrows indicate the direction of the electric field. The structure parameters are the same as in Fig. 2Back to article page