Fig. 6
From: Self-reactive impedance surfaces for enhanced quasi-line wave propagation in the terahertz spectrum
(a) Quasi-line mode propagating between the edges of graphene structures, demonstrating an inductive electromagnetic response. (b) Imaginary component and (c) real component of the surface impedance of a six-layer graphene structure, plotted as a function of frequency for various Îľ values, with the graphene layers modeled as an equivalent impedance surface. (d) The relationship between Îľ values and frequency, showing the influence of Îľ on the existence and bandwidth of the propagating mode.
