Figure 2.

Normalized dispersion relations of SMPs for various dielectric thickness $d_1$ values (a) $0.014{\lambda }_m$, (b) $0.4{\lambda }_m$, and (c) ${\lambda }_m$, with fixed $d_2=0.07{\lambda }_m$. Dispersion relations of SMPs for various dielectric thickness $d_1$ values (d) $0.014{\lambda }_m$, (e) $0.4{\lambda }_m$, and (f) ${\lambda }_m$, with semi-infinite gyromagnetic medium $d_2=\infty$. Here ${\lambda }_m=2\pi c/{\omega }_m$, $k_m={\omega }_m/c$.