Polariton-acoustic-phonon interaction in a semiconductor microcavity Auteur(s): Cassabois G., Triques Alc, Bogani F., Delalande C., Roussignol P., Piermarocchi C. (Article) Publié: Physical Review B, vol. 61 p.1696-1699 (2000) Ref HAL: hal-00546760_v1 DOI: 10.1103/PhysRevB.61.1696 WoS: 000085760200017 Exporter : BibTex | endNote 35 Citations Résumé: The broadening of polariton lines by acoustic phonons is investigated in a semiconductor microcavity by means of interferometric correlation measurements with subpicosecond resolution. A decrease of the polariton-acoustic phonon coupling is clearly observed for the lower polariton branch as one approaches the resonance between exciton and photon states. This behavior cannot be explained in terms of a semiclassical linear dispersion theory but requires a full quantum description of the microcavity in the strong-coupling regime. |