Correlated dynamics of trions and excitons in modulation-doped CdTe quantum wells

Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearchpeer-review

DOI

  • M.T. Portella-Oberli, École Polytechnique Fédérale de Lausanne, Switzerland
  • Ciulin
  • J.H. Berney, École Polytechnique Fédérale de Lausanne, Switzerland
  • M. Kutrowski, Polish Academy of Sciences, Warsaw, Poland
  • T. Wojtowicz, Polish Academy of Sciences, Warsaw, Poland
  • B. Deveaud, École Polytechnique Fédérale de Lausanne, Switzerland

We report on the nonlinear optical dynamical properties of excitonic complexes in CdTe modulation-doped quantum wells, due to many-body interaction among excitons, trions, and electrons. This study was performed by time and spectrally resolved pump probe experiments as a function of temperature and densities of excitons, trions and electrons. The results reveal that the nonlinearities induced by trions are different from those induced by excitons and in addition they are mutually correlated. We show that the origin of these subtle differences comes from phase-space filling and short-range fermion exchange.

Original languageEnglish
Title of host publication8TH CONFERENCE ON OPTICS OF EXCITONS IN CONFINED SYSTEMS (OECS-8)
EditorsR Cingolani
Number of pages5
PublisherWiley - V C H Verlag GmbH & Co. KGaA
Publication year2004
Pages484-488
ISBN (print)3-527-40505-4
DOIs
Publication statusPublished - 2004
Externally publishedYes
Event8th International Conference on Optics of Excitons in Confined Systems - Lecce, Italy
Duration: 15 Sep 200317 Sep 2003

Conference

Conference8th International Conference on Optics of Excitons in Confined Systems
LandItaly
ByLecce
Periode15/09/200317/09/2003

    Research areas

  • BLUE SHIFT, DEPENDENCE

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