Probing Plasmons in Graphene by Resonance Energy Transfer

Abstract

We propose a novel method to probe electronic excitations in graphene by monitoring the fluorescence quenching of a semiconductor quantum dot (or a dye molecule) due to the resonance energy transfer to the graphene sheet. We show how the dispersion relation of plasmons in graphene (as well as of other electronic excitations) can be accurately extracted by controlling the backgate voltage and the distance between quantum dot and graphene.Comment: 8 pages, 4 figures, Revised version, Accepted for publication in Physical Review