Fig. 4: Thermal modulation of plasmons in hybrid graphene/structured-metal systems.
From: Thermal manipulation of plasmons in atomically thin films
a–d Variation in the reflection spectra of graphene/silver gratings in the a, c NIR and b, d far/mid-IR plasmonic regions for different graphene electron temperatures Te; the silver thickness is 1 nm in a, b and 10 nm in c, d. e, f Peak reflectance as a function of the graphene electron temperature for structures with different types of metal and metal thicknesses (see geometrical parameters indicated by labels). In a, c, e, plasmons are metal-like, and graphene is doped to EF = 0.55 eV. In b, d, f, plasmons are acoustic, and graphene is doped to EF = 0.4 eV. All structures are embedded in an ε = 2 dielectri
