Semiclassical theory of excitonic polaritons in a planar semiconductor microcavity

TL;DR

This paper develops a detailed semiclassical theoretical framework for understanding exciton-polaritons in planar semiconductor microcavities, accounting for complex quantum well exciton responses and band mixing effects.

Contribution

It introduces a comprehensive, self-contained model that incorporates non-local dielectric response and hole subband structure for exciton-polaritons in microcavities.

Findings

Analysis of exciton-cavity mode coupling selection rules.

Inclusion of band mixing effects in exciton-polariton behavior.

Framework applicable to various microcavity configurations.

Abstract

We present a comprehensive theoretical description of quantum well exciton-polaritons imbedded in a planar semiconductor microcavity. The exact non-local dielectric response of the quantum well exciton is treated in detail. The 4-spinor structure of the hole subband in the quantum well is considered, including the pronounced band mixing effect. The scheme is self-contained and can be used to treat different semiclassical aspects of the microcavity properties. As an example, we analyze the "selection" rules for the exciton-cavity mode coupling for different excitons.