Figure 3: Modal properties and field distributions of HDLNRPWs with different g and r. | Scientific Reports

Figure 3: Modal properties and field distributions of HDLNRPWs with different g and r.

From: Hybrid Dielectric-loaded Nanoridge Plasmonic Waveguide for Low-Loss Light Transmission at the Subwavelength Scale

Figure 3

(a)–(d) Dependence of modal characteristics on the radius of the nanoridge (r): (a) modal effective index (neff); (b) propagation length (L); (c) normalized mode area (Aeff/A0); (d) figure of merit (FoM). (e)–(i) Normalized electric field distributions for typical waveguides (corresponding to the configurations indicated in (c)): (e) g = 5 nm, r = 5 nm; (f) g = 5 nm, r = 50 nm; (g) g = 10 nm, r = 30 nm; (h) g = 50 nm, r = 5 nm; (i) g = 50 nm, r = 50 nm. All the fields are normalized with respect to the power flow in the cross-sections.

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