Enhanced energy transfer via graphene–coated wire surface plasmons

OLIVO, JULIETA; CUEVAS, MAURO

JOURNAL OF QUANTITATIVE SPECTROSCOPY AND RADIATIVE TRANSFER

PERGAMON-ELSEVIER SCIENCE LTD

Año: 2019

0022-4073

This work analyzes the electromagnetic energy transfer rate between donor and acceptor quantum emitters close to a graphene?coated wire. We discuss the modification of the energy transfer rate when the emitters are interfaced via surface plasmon (SP)environments. All of the notable effects on the spatial dependence of the energy transfer are highlighted and discussed in terms ofSP propagation characteristics. Our results show that a dramatically enhancement of the energy transfer occur when the graphenewire SPs are excited. Moreover, different dipole moment orientations influence differently this enhancement. As a consequence ofthe quasi?one?dimensional graphene wire SPs, we found that the normalized energy transfer rate reaches a maximum value at adonor?acceptor distance which is twice the value corresponding to its two?dimensional counterpart consisting of a single graphenesheet or a flat graphene waveguide. In particular, we provide a simplified model that reproduces the main features of the numericalresults.