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Relaxation Dynamics of Electron–Hole Pairs Studied by Spatiotemporal Pump and Probe Experiments

Title data

Grosse, S. ; Arnold, R. ; von Plessen, G. ; Koch, M. ; Feldmann, J. ; Axt, Vollrath M. ; Kuhn, Tilmann ; Rettig, R. ; Stolz, W.:
Relaxation Dynamics of Electron–Hole Pairs Studied by Spatiotemporal Pump and Probe Experiments.
In: Physica Status Solidi B. Vol. 204 (1997) Issue 1 . - pp. 147-150.
ISSN 1521-3951
DOI: https://doi.org/10.1002/1521-3951(199711)204:1<147::AID-PSSB147>3.0.CO;2-V

Official URL: Volltext

Project information

Project financing: Deutsche Forschungsgemeinschaft
European Union Network Ultrafast Quantum Optoelectronics

Abstract in another language

The temporal evolution of the ambipolar diffusivity of optically excited electron–hole pairs is investigated for a strained quantum well structure by temporally and spatially resolved pump and probe experiments. Dependent on the excitation conditions the diffusivity transients reflect the cooling and heating processes of excitons as well as the formation dynamics of excitons out of free electron–hole pairs within less than 10 ps. Diffusivity transients obtained by Monte Carlo simulations of a simplified excitonic Boltzmann equation display all features of the experimental curves and support our interpretation of the lateral propagation dynamics in terms of formation, cooling and heating of excitons

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: excitons; Semiconductors; laser excitation; ultrafast dynamics; non-linear optics; pump probe; exciton formation
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: 16 Oct 2017 10:41
Last Modified: 18 Oct 2017 07:38
URI: https://eref.uni-bayreuth.de/id/eprint/40018