Dipole-Induced Electromagnetic Transparency

TL;DR

This paper investigates how dense layers of quantum emitters can exhibit a transparency phenomenon similar to EIT, called DIET, by controlling interactions and interference effects to enable narrow transmission windows.

Contribution

It introduces the concept of Dipole-Induced Electromagnetic Transparency (DIET) in dense quantum emitter layers and analyzes its control and potential applications.

Findings

DIET can be achieved in dense quantum emitter layers through destructive interference.

Tuning material parameters allows for narrow transparency windows.

Potential applications include slow light and optical switching.

Abstract

We determine the optical response of a thin and dense layer of interacting quantum emitters. We show that in such a dense system, the Lorentz redshift and the associated interaction broadening can be used to control the transmission and reflection spectra. In the presence of overlapping resonances, a Dipole-Induced Electromagnetic Transparency (DIET) regime, similar to Electromagnetically Induced Transparency (EIT), may be achieved. DIET relies on destructive interference between the electromagnetic waves emitted by quantum emitters. Carefully tuning material parameters allows to achieve narrow transmission windows in otherwise completely opaque media. We analyze in details this coherent and collective effect using a generalized Lorentz model and show how it can be controlled. Several potential applications of the phenomenon, such as slow light, are proposed.