Graphene plasmonic electro-absorption modulator

We designed a plasmonic absorption electro-optical modulator using graphene-insulator-graphene configuration. By applying an electric field, we are able to tune the graphene's fermi level and thus modulate the optical absorption. Having a width of 80 nm, this modulator easily integrates with electronic components, and reaches a 3dB extinction ratio with a length of only 400 nm.