Nanoscale Plasmonic Devices Based on Metal-Dielectric-Metal Stub Resonators

Figure 6

(a) Modulation depth 𝑇(𝜅=1)/𝑇(𝜅=0) of the side-coupled-cavity switch (Figure 5(a)) as a function of the stub length 𝐿 calculated using FDFD (black curve), and transmission line theory (red curve). Results are shown for 𝑤=50 nm. All other parameters are as in Figure 5(b). (b) Magnetic field profile of the switch for 𝐿=120 nm in the absence of pumping (𝜅=0). All other parameters are as in (a). (c) Magnetic field profile of the switch in the presence of pumping (𝜅=1). All other parameters are as in (b).

(a)

(b)

(c)