Figure 3 | Scientific Reports

Figure 3

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

Figure 3

(a) Dispersion, (b) propagation length, (c) localization length, and (d) figure of merit of the SPhPs supported by air/LiF waveguides of thickness t on a glass substrate, respectively; t = 10 nm (solid blue line), t = 50 nm (dashed red line), t = 100 nm (dotted black line), and t = 150 nm (dashed-dotted pink line). Dashed black lines in panel (a) show the edges of the polaritonic gap of LiF.

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