Weak and strong coupling of a quantum emitter with a meta-surface

TL;DR

This paper investigates the near-field coupling between a quantum emitter and a resonant meta-surface, revealing conditions for strong coupling via Bloch surface modes, with implications for light control and nonlinear generation.

Contribution

It introduces the study of near-field coupling of quantum emitters with meta-surfaces and identifies conditions for strong coupling through Bloch modes.

Findings

Existence of Bloch surface modes localized on the meta-surface.

Strong coupling regime achievable when emitter resonance matches Bloch modes.

Potential for enhanced light-matter interactions using meta-surfaces.

Abstract

Meta--surfaces are the bidimensional analogue of metamaterials. They are made on resonant elements periodically disposed on a surface. They have the ability of controlling the polarization of light and to generalized refraction laws as well. They have also been used to enhance the generation of the second harmonic. It seems however that their near-field properties have not been investigated. In this work, the coupling of an emitter with a meta-- surface made of a periodic set of resonant linear dipoles was studied. Bloch surface modes localized on the meta--surface exist due the resonance of the dipoles. The strong coupling regime with a emitter can be reached when the Bohr frequency of the emitter is in resonance with the Bloch modes of the meta-surface.