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arXiv · 1308.2165

Exciton-Trion Coherent Interactions in a CdTe/CdMgTe Quantum Well

G. Moody·I. A. Akimov·H. Li·R. Singh·D. R. Yakovlev·G. Karczewski·M. Wiater·T. Wojtowicz·M. Bayer·S. T. Cundiff
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Abstract

We present a collection of zero-, one- and two-quantum two-dimensional coherent spectra of excitons and trions in a CdTe/(Cd,Mg)Te quantum well. The set of spectra provides a unique and comprehensive picture of the exciton and trion nonlinear optical response. Exciton-exciton and exciton-trion coherent coupling is manifest as distinct peaks in the spectra, whereas signatures of trion-trion interactions are absent. Excellent agreement using density matrix calculations is obtained, which highlights the essential role of many-body effects on coherent interactions in the quantum well.

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G. Moody, I. A. Akimov, H. Li, R. Singh, D. R. Yakovlev, G. Karczewski, M. Wiater, T. Wojtowicz, M. Bayer, S. T. Cundiff. 2013-08-09. Exciton-Trion Coherent Interactions in a CdTe/CdMgTe Quantum Well. https://doi.org/10.1103/physrevlett.112.097401

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