Schematic of the graphene platform used, and, right, structure of the metagate. (IMAGE)

SPIE--International Society for Optics and Photonics

Schematic of the graphene platform used, and, right, structure of the metagate.

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(Left) Schematic of the graphene platform used. Graphene is sandwiched between two layers of hexagonal boron nitride layers, and these are layered on top of a metagate layer. (Right) Structure of the metagate. The interface between metagates with different hole radii acts as a topological region that confines certain forms of light. doi 10.1117/1.AP.2.4.046003

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