The relaxation dynamics of electron-hole pairs generated by a short laser pulse near the band edge of a GaAs quantum wire is analyzed by using a microscopic density matrix approach. We account for Coulomb renormalizations of various scattering mechanisms that are of importance near the band gap. The exciton formation dynamics, photoluminescence signals, and the build-up of center-of-mass kinetic energies depend crucially on the excitation energy. Exciton formation and dissociation are shown to change characteristically with temperature.
CITATION STYLE
Kavokin, A., Malpuech, G., Di Carlo, A., & Baumberg, J. J. (2002). Theory of exciton formation and relaxation in quantum wires. In Physica Status Solidi (A) Applied Research (Vol. 190, pp. 743–747). https://doi.org/10.1002/1521-396X(200204)190:3<743::AID-PSSA743>3.0.CO;2-F
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