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          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2001     Display Documents



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ID: 7440.0, MPI für Festkörperforschung / FKF Publikationen 2001
Coherent nonlinear pulse propagation on a free-exciton resonance in a semiconductor
Authors:Nielsen, N. C.; Linden, S.; Kuhl, J.; Förstner, J.; Knorr, A.; Koch, S. W.; Giessen, H.
Language:English
Date of Publication (YYYY-MM-DD):2001
Title of Journal:Physical Review B
Volume:64
Issue / Number:24
Sequence Number of Article:245202
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:The coherent exciton-light coupling in pulse propagation
experiments on the A-exciton resonance in bulk CdSe is
investigated over a broad intensity range. At low light
intensities, polariton propagation beats due to interference
between excited states on both polariton branches are observed,
In an intermediate intensity regime, the temporal polariton
beating is suppressed in consequence of exciton-exciton
interaction, At the highest light intensities, self-induced
transmission and multiple pulse breakup are identified as a
signature for carrier density Rabi flopping. Exciton-phonon
scattering is shown to gradually eliminate coherent nonlinear
propagation effects due to enhanced dephasing of the excitonic
polarization. Calculations using the semiconductor Maxwell-
Bloch equations are in qualitative agreement with the
experimental data.
External Publication Status:published
Document Type:Article
Communicated by:Michaela Asen-Palmer
Affiliations:MPI für Festkörperforschung
External Affiliations:; Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
; Tech Univ Berlin, Inst Theoret Phys, D-10623 Berlin, Germany
; Univ Marburg, Dept Phys, D-35032 Marburg, Germany
; Univ Marburg, Ctr Mat Sci, D-35032 Marburg, Germany
Identifiers:ISI:000173082500040
ISSN:0163-1829
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