Fig. 8From: Polarization Converter with Controllable Birefringence Based on Hybrid All-Dielectric-Graphene MetasurfacePhase map of electric field component E z through the silicon/graphene cross-shaped structure at z = 0 calculated at the design wavelength λ = 1.5 μm, a when the gate voltage is V G = − 47.5 V, and b when the gate voltage is V G = 47.5 VBack to article page