External field effect on quantum features of radiation emitted by a QW in a microcavity

TL;DR

This paper investigates how an external field influences the quantum properties of light emitted by a quantum well in a microcavity, focusing on effects like vacuum Rabi splitting and quadrature squeezing under various conditions.

Contribution

It provides a systematic analysis of the impact of exciton-photon detuning and squeezed vacuum reservoirs on quantum light emission in semiconductor microcavities.

Findings

Exciton-photon detuning shifts polariton resonance frequencies.

Detuning decreases fluorescence intensity.

Emitted light exhibits quadrature squeezing influenced by input field squeezing.

Abstract

We consider a semiconductor quantum well in a microcavity driven by coherent light and coupled to a squeezed vacuum reservoir. By systematically solving the pertinent quantum Langevin equations in the strong coupling and low excitation regimes, we study the effect of exciton-photon detuning, external coherent light, and the squeezed vacuum reservoir on vacuum Rabi splitting and on quantum statistical properties of the light emitted by the quantum well. We show that the exciton-photon detuning leads to a shift in polariton resonance frequencies and a decrease in fluorescence intensity. We also show that the fluorescent light exhibits quadrature squeezing which predominately depends on the exciton-photon detuning and the degree of the squeezing of the input field.