Tailoring of electromagnetic field localizations by two-dimensional graphene nanostructures.

ABSTRACT: Graphene has great potential for enhancing light-matter interactions in a two-dimensional regime due to surface plasmons with low loss and strong light confinement. Further utilization of graphene in nanophotonics relies on the precise control of light localization properties. Here, we demonstrate the tailoring of electromagnetic field localizations in the mid-infrared region by precisely shaping the graphene into nanostructures with different geometries. We generalize the phenomenological cavity model and employ nanoimaging techniques to quantitatively calculate and experimentally visualize the two-dimensional electromagnetic field distributions within the nanostructures, which indicate that the electromagnetic field can be shaped into specific patterns depending on the shapes and sizes o

SUBMITTER: Zheng ZB 

PROVIDER: S-EPMC6061900 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature