| Auteur | Rechercher : Molas, M.; Rechercher : Gołasa, K.; Rechercher : Furman, M.; Rechercher : Lapointe, J.1; Rechercher : Wasilewski, Z.R.1; Rechercher : Potemski, M.; Rechercher : Babiński, A. |
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| Affiliation | - Conseil national de recherches du Canada. Institut des sciences des microstructures du CNRC
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| Format | Texte, Article |
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| Sujet | Electrons and holes; Emission lines; Experimental studies; Fine structure splitting; Fine structures; InAs/GaAs quantum dots; Linearly polarized; Low temperatures; Microphotoluminescence; Neutral excitons; P-shell; Self-assembled; Electromagnetic wave emission; Excitons; Optical anisotropy; Optical properties; Polarization; Semiconductor quantum dots |
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| Résumé | Results of experimental study of multiexcitonic emission related to the p-shell of single self-assembled InAs/GaAs quantum dots are presented. Optical properties of a first emission line to appear from the p-shell of a strongly excited quantum dots are investigated using low-temperature polarization- sensitive micro-photoluminescence measurements. The emission line is attributed to the recombination of a complex of three electrons and holes confined in a dot (neutral triexciton), 3X. It is found that the emission consists of two linearly polarized components and the fine structure splitting is larger than the respective splitting of a neutral exciton. The optical anisotropy of the 3X emission is related to the anisotropy of the quantum dot localizing potential. The axis of the 3X optical anisotropy changes from dot to dot covering broad range within ±50 degrees with respect to the axis defined by the optical anisotropy of a neutral exciton (X). Possible origin of the deviation is discussed. |
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| Date de publication | 2012 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21269377 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 5683198b-d0b9-418b-ad44-3fa3745cac5b |
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| Enregistrement créé | 2013-12-12 |
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| Enregistrement modifié | 2020-04-21 |
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