Frequency cavity pulling induced by a single semiconductor quantum dot

TL;DR

This paper explores how a single semiconductor quantum dot influences the emission of a cavity mode, revealing phonon-assisted effects and spectral tuning phenomena in cavity quantum electrodynamics.

Contribution

It demonstrates the impact of phonon-assisted emission on cavity mode properties with a spectrally broad emitter in the weak coupling regime.

Findings

Spectral detuning causes cavity mode broadening and narrowing.

Phonon interactions explain the emission features.

Highlights new cavity QED regimes with broad emitters.

Abstract

We investigate the emission properties of a single semiconductor quantum dot deterministically coupled to a confined optical mode in the weak coupling regime. A strong pulling, broadening and narrowing of the cavity mode emission is evidenced when changing the spectral detuning between the emitter and the cavity. These features are theoretically accounted for by considering the phonon assisted emission of the quantum dot transition. These observations highlight a new situation for cavity quantum electrodynamics involving spectrally broad emitters.