Tuning resonance energy transfer with magneto-optical properties of graphene

TL;DR

This paper demonstrates that the resonance energy transfer between quantum emitters near graphene can be actively controlled and significantly tuned using an external magnetic field, leveraging graphene's magneto-optical properties.

Contribution

It introduces a method to actively control and tune RET rates near graphene using magnetic fields, highlighting the role of magnetoplasmon polaritons in this process.

Findings

RET rate can be tuned up to six orders of magnitude with magnetic field variations.

Graphene's magneto-optical response enables RET control even at room temperature.

Magnetoplasmon polaritons dominate the RET channel within certain distances.

Abstract

We investigate the resonance energy transfer (RET) rate between two quantum emitters near a suspended graphene sheet in vacuum under the influence of an external magnetic field. We perform the analysis for low and room temperatures and show that, due to the extraordinary magneto-optical response of graphene, it allows for an active control and tunability of the RET even in the case of room temperature. We also demonstrate that the RET rate is extremely sensitive to small variations of the applied magnetic field, and can be tuned up to a striking six orders of magnitude for quite realistic values of magnetic field. Moreover, we evidence the fundamental role played by the magnetoplasmon polaritons supported by the graphene monolayer as the dominant channel for the RET within a certain distance range. Our results suggest that magneto-optical media may take the manipulation of energy transfer between quantum emitters to a whole new level, and broaden even more its great spectrum of applications.