Figure 5 | Scientific Reports

Figure 5

From: Tailoring far-infrared surface plasmon polaritons of a single-layer graphene using plasmon-phonon hybridization in graphene-LiF heterostructures

Figure 5

(a) Dispersion, (b) propagation length, (c) localization length, and (d) figure of merit of the SPPPs supported by the air/graphene/LiF/glass waveguide for t = 100 nm (solid blue lines), t = 200 nm (dotted black lines) at μ = 0.2 eV. Results for SPPs of the graphene/glass structure are presented for comparison (dashed red lines). The edges of the polaritonic gap of LiF are shown by dashed black line.

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