Fig. 2: Optical transmittance T(ω) of S1 and S2 3D graphene samples from THz to UV.
From: Disordered photonics behavior from terahertz to ultraviolet of a three-dimensional graphene network
T(ω) shows a high-pass-filter behavior, with a rapid increase from THz to MIR (nearly 5000 cm−1), and saturating to a constant value in the VIS and UV range (about 0.13 for both samples). The N-doped S2 sample does not show remarkable differences with respect to the undoped S1 one with the same average morphology. Transmittance data are shown in the inset as a function of wavelength.
