Influence of phonons on the emission spectrum of a quantum dot embedded in a nanocavity

TL;DR

This paper models the emission spectrum of a quantum dot in a nanocavity, highlighting how phonon interactions and the semiconductor environment influence the spectrum in strong coupling regimes.

Contribution

It introduces a semi-classical model incorporating phonon effects into the quantum dot emission spectrum within nanocavities, extending traditional cavity QED models.

Findings

Phonon interactions significantly alter the emission spectrum.

The semiconductor environment critically affects strong coupling behavior.

The semi-classical approach effectively captures matter-field interactions.

Abstract

We model the emission spectrum of a quantum dot embedded in a (e.g. photonic crystal) nanocavity, using a semi-classical approach to describe the matter-field interaction. We start from the simple model of a quantum dot as a two-level system, and recover the result expected from cavity quantum electrodynamics. Then, we study the influence of electron-acoustic-phonons interaction. We show that the surrounding semiconductor plays an essential role in the emission spectrum in strong coupling.