Skip to main content
Article thumbnail
Location of Repository

Polariton dynamics and Bose-Einstein condensation in semiconductor microcavities

By D. Porras, C. Ciuti, J.J. Baumberg and C. Tejedor

Abstract

We present a theoretical model that allows us to describe the polariton dynamics in a semiconductor microcavity at large densities, for the case of nonresonant excitation. Exciton-polariton scattering from a thermalized exciton reservoir is identified as the main mechanism for relaxation into the lower polariton states. A maximum in the polariton distribution that shifts towards lower energies with increasing pump power or temperature is shown, in agreement with recent experiments. Above a critical pump power, macroscopic occupancies (5x10(4)) can be achieved in the lowest-energy polariton state. Our model predicts the possibility of Bose-Einstein condensation of polaritons, driven by exciton-polariton interaction, at densities well below the saturation density for CdTe microcavities

Topics: QC
Year: 2002
OAI identifier: oai:eprints.soton.ac.uk:14622
Provided by: e-Prints Soton

Suggested articles


To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.