Fig. 1: The characterization of gap-mode plasmonic nanocavity.
From: Manipulating the light-matter interactions in plasmonic nanocavities at 1 nm spatial resolution
a The schematic diagram of the gap-mode nanocavity, which consists of a Au film, a Ag nanocube, a monolayer MoS2, and PE spacer layers. b Scanning electron microscope (SEM) image of Ag nanocubes with 80 ± 3 nm (scale bar 100 nm). The inset is a transmission electron microscope (TEM) image of an Ag nanocube(scale bar 20 nm). c Bright-field image and d the corresponding dark-field scattering image of monolayer MoS2 with gap-mode nanocavities (scale bar 5 μm). The inset is the AFM height profile of monolayer MoS2 on PE-coated Au film
