InAs/AlGaAs quantum dots for single-photon emission in a red spectral range

We report on comparative optical studies of InAs/Al(0.44)Ga(0.56)As quantum dots (QDs) grown by molecular beam epitaxy either with or without a thin GaAs interlayer inserted between the AlGaAs barrier and InAs QDs. Emission properties of individual QDs are investigated by micro-photoluminescence spe...

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Autores principales: Rakhlin, M. V., Belyaev, K. G., Klimko, G. V., Mukhin, I. S., Kirilenko, D. A., Shubina, T. V., Ivanov, S. V., Toropov, A. A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5871773/
https://www.ncbi.nlm.nih.gov/pubmed/29593301
http://dx.doi.org/10.1038/s41598-018-23687-7
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author Rakhlin, M. V.
Belyaev, K. G.
Klimko, G. V.
Mukhin, I. S.
Kirilenko, D. A.
Shubina, T. V.
Ivanov, S. V.
Toropov, A. A.
author_facet Rakhlin, M. V.
Belyaev, K. G.
Klimko, G. V.
Mukhin, I. S.
Kirilenko, D. A.
Shubina, T. V.
Ivanov, S. V.
Toropov, A. A.
author_sort Rakhlin, M. V.
collection PubMed
description We report on comparative optical studies of InAs/Al(0.44)Ga(0.56)As quantum dots (QDs) grown by molecular beam epitaxy either with or without a thin GaAs interlayer inserted between the AlGaAs barrier and InAs QDs. Emission properties of individual QDs are investigated by micro-photoluminescence spectroscopy using 500-nm-size etched cylindric mesa structures. The single-photon statistics of the QDs of both types, emitting in the red spectral range between 636 and 750 nm, is confirmed by the measurements of the second-order correlation function. A negligibly small exciton fine structure splitting is detected in the majority of the QDs grown with the GaAs interlayer that implies the possibility of generating pairs of entangled photons with high entanglement fidelity.
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spelling pubmed-58717732018-04-02 InAs/AlGaAs quantum dots for single-photon emission in a red spectral range Rakhlin, M. V. Belyaev, K. G. Klimko, G. V. Mukhin, I. S. Kirilenko, D. A. Shubina, T. V. Ivanov, S. V. Toropov, A. A. Sci Rep Article We report on comparative optical studies of InAs/Al(0.44)Ga(0.56)As quantum dots (QDs) grown by molecular beam epitaxy either with or without a thin GaAs interlayer inserted between the AlGaAs barrier and InAs QDs. Emission properties of individual QDs are investigated by micro-photoluminescence spectroscopy using 500-nm-size etched cylindric mesa structures. The single-photon statistics of the QDs of both types, emitting in the red spectral range between 636 and 750 nm, is confirmed by the measurements of the second-order correlation function. A negligibly small exciton fine structure splitting is detected in the majority of the QDs grown with the GaAs interlayer that implies the possibility of generating pairs of entangled photons with high entanglement fidelity. Nature Publishing Group UK 2018-03-28 /pmc/articles/PMC5871773/ /pubmed/29593301 http://dx.doi.org/10.1038/s41598-018-23687-7 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Rakhlin, M. V.
Belyaev, K. G.
Klimko, G. V.
Mukhin, I. S.
Kirilenko, D. A.
Shubina, T. V.
Ivanov, S. V.
Toropov, A. A.
InAs/AlGaAs quantum dots for single-photon emission in a red spectral range
title InAs/AlGaAs quantum dots for single-photon emission in a red spectral range
title_full InAs/AlGaAs quantum dots for single-photon emission in a red spectral range
title_fullStr InAs/AlGaAs quantum dots for single-photon emission in a red spectral range
title_full_unstemmed InAs/AlGaAs quantum dots for single-photon emission in a red spectral range
title_short InAs/AlGaAs quantum dots for single-photon emission in a red spectral range
title_sort inas/algaas quantum dots for single-photon emission in a red spectral range
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5871773/
https://www.ncbi.nlm.nih.gov/pubmed/29593301
http://dx.doi.org/10.1038/s41598-018-23687-7
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