Fig. 1: Schematic of the investigated hybrid system excited by circularly polarized light. | Nature Communications

Fig. 1: Schematic of the investigated hybrid system excited by circularly polarized light.

From: Influence of resonant plasmonic nanoparticles on optically accessing the valley degree of freedom in 2D semiconductors

Fig. 1

A resonant gold nanoparticle (GNP, size 200 nm) is placed above a monolayer of molybdenum disulfide situated on a glass substrate. A thin dielectric spacer layer of silicon oxide (thickness 15 nm) was introduced prior to the nanoparticle deposition in order to prevent direct metal-TMD contact. Note that the crystal structure was scaled up for better visibility. The inset illustrates the valley-contrasting optical selection rules in monolayer TMDs.

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