Resolving exciton and polariton multi-particle correlations in an optical microcavity in the strong coupling regime

2024/04/23 by Victoria Quirós-Cordero, Esteban Rojas-Gatjens, Quirós-Cordero, Victoria +17 · 1 voice
#cond-mat.mtrl-sci #physics.chem-ph

paper · pdf · doi:10.48550/arxiv.2404.14744

Abstract

Multi-particle correlations of exciton-polaritons and reservoir-excitons in the strong light-matter coupling regime dictate the quantum dynamics of optical microcavities. In this letter, we examine the many-body exciton-polariton dynamics in a Fabry-Pérot microcavity of a two-dimensional metal-halide semiconductor over timescales involving polariton (≪ 1 ps) and exciton (≫ 1 ps) scattering. We find enhanced exciton nonlinear dynamics in the microcavity versus the bare semiconductor, concomitant with ultrafast polariton scattering dynamics. We measure, by means of coherent spectroscopy, the coupling between exciton-polaritons, bright excitons, and reservoir-excitons that highlight the complex scattering landscape that fundamentally drives polariton condensation.

Discussions

• This is not a new upload but a recent one from our group in collaboration with @stingelin.bsky.social, @ebitnet.bsky.social, @jpcorreabaena.bsky.social. How do many-body dynamics inhibit formation of [bsky, 7 points, 0 comments]

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