Fig. 9From: Focusing of THz waves with a microsize parabolic reflector made of graphene in the free spaceE-case: Color map of the near-zone total field. Here, f/d = 0.3, d = 450 μm, μ c = 1 eV, T = 300 K, τ = 1 ps and the frequency is 5 THzBack to article page