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Theory of Exciton Formation and Relaxation in Quantum Wires

Title data

Siantidis, K. ; Axt, Vollrath M. ; Wühr, J. ; Kuhn, Tilmann:
Theory of Exciton Formation and Relaxation in Quantum Wires.
In: Physica Status Solidi A. Vol. 190 (2002) Issue 3 . - pp. 743-747.
ISSN 1521-396X
DOI: https://doi.org/10.1002/1521-396X(200204)190:3<743::AID-PSSA743>3.0.CO;2-F

Project information

Project financing: Deutsche Forschungsgemeinschaft
European Commission TMR network Ultrafast Quantum Optoelectronics

Abstract in another language

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.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Exciton formation; Correlated electron–hole pairs; Relaxation dynamics of excitons; dynamics controlled truncation; ultrafast dynamics; non-linear optics; phonon induced relaxation; phonons
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III > Chair Theoretical Physics III - Univ.-Prof. Dr. Martin Axt
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III
Result of work at the UBT: No
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 18 Oct 2017 09:03
Last Modified: 18 Oct 2017 09:03
URI: https://eref.uni-bayreuth.de/id/eprint/40068