Goos-H\"anchen and Imbert-Fedorov shifts for Gaussian beams impinging on graphene-coated surfaces

TL;DR

This paper theoretically investigates how graphene coatings influence the lateral shifts of Gaussian beams upon reflection, revealing giant negative Goos-H"anchen shifts due to graphene's surface conductibility.

Contribution

It introduces a theoretical framework showing that graphene's surface conductibility causes significant negative Goos-H"anchen shifts in reflected Gaussian beams.

Findings

Graphene coating induces giant negative Goos-H"anchen shifts.

Surface conductibility $\sigma(\omega)$ is responsible for the shifts.

The shifts are significant and depend on graphene's properties.

Abstract

We present a theoretical study of the Goos-H\"anchen and Imbert-Fedorov shifts for a fundamental Gaussian beam impinging on a surface coated with a single layer of graphene. We show that the graphene surface conductibility $\sigma(\omega)$ is responsible for the appearance of a giant and negative spatial Goos-H\"anchen shift.