Nanoscale Plasmonic Devices Based on Metal-Dielectric-Metal Stub Resonators
Figure 4
(a) Dispersion relation of the plasmonic waveguide system of Figure 3(a) calculated using FDFD (circles) and scattering matrix theory (solid line). Results are shown for nm, nm (black line and circles) and nm, nm (red line and circles). All other parameters are as in Figure 3(b). In both cases only a portion of the band structure is shown, corresponding to the frequency range of the middle band. ((b)-(c)) Reciprocal of the group velocity and propagation length for the plasmonic waveguide system of Figure 3(a) as a function of frequency calculated using FDFD. Results are shown for nm, nm and nm, nm. All other parameters are as in Figure 3(b). (d) Dispersion relation of the plasmonic waveguide system of Figure 3(a) calculated using FDFD. Results are shown for nm (black line), nm (red line), and nm (green line). All other parameters are as in Figure 3(b). In all cases only a portion of the band structure is shown, corresponding to the frequency range of the middle band.
