Fig. 5
From: Self-reactive impedance surfaces for enhanced quasi-line wave propagation in the terahertz spectrum
(a) The real part of graphene’s surface conductivity as a function of frequency for various Fermi energy (Ef) values, illustrating how the real component influences dissipation losses and surface impedance. (b) The imaginary part of graphene’s surface conductivity as a function of frequency for different Ef values, showing the transition from inductive to capacitive behavior, which enables the tuning of waveguiding properties depending on the frequency.
