Determining graphene's induced band gap with magnetic and electric emitters

TL;DR

This paper investigates how the decay rates of nearby emitters can be used to detect and measure the band gap in graphene's electronic structure, combining numerical and analytical methods.

Contribution

It introduces a novel approach to sensing graphene's band gap through emitter decay rate measurements, supported by detailed theoretical analysis.

Findings

Decay rates vary with graphene's band gap

Measurement of decay rates can reveal the presence of a band gap

The method offers an efficient sensing technique for graphene's electronic properties

Abstract

We present numerical and analytical results for the lifetime of emitters in close proximity to graphene sheets. Specifically, we analyze the contributions from different physical channels that participate in the decay processes. Our results demonstrate that measuring the emitters' decay rates provides an efficient route for sensing graphene's optoelectronic properties, notably the existence and size of a potential band gap in its electronic band structure.