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Fig. 1 | Nanoscale Research Letters

Fig. 1

From: Characteristics of Plasmonic Bragg Reflectors with Graphene-Based Silicon Grating

Fig. 1

a, b 3D and 2D schematic illustration of PBR. A single layer of graphene and a silicon (Si) grating substrate between which a silica (SiO 2 ) layer has been embedded. The Si substrate has a groove grating structure with period number N, period w 1+ w 2, groove width w 2, and groove depth d. The constant distance (D) between graphene and Si grating is 100 nm. c, d The real part of effective refractive index (Re(N eff)) in relation to the gate voltage (V g ) and the thickness of silica layer (h). e, f The propagation distance (L GSPP) in relation to the gate voltage (V g ) and the thickness of silica layer (h)

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