Resonant optical excitation of longitudinal-optical phonons and intermixing in InAsAlAs single quantum dots

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dc.identifier.uri http://dx.doi.org/10.15488/2835
dc.identifier.uri http://www.repo.uni-hannover.de/handle/123456789/2861
dc.contributor.author Sarkar, D.
dc.contributor.author Van Der Meulen, H.P.
dc.contributor.author Calleja, J.M.
dc.contributor.author Meyer, J.M.
dc.contributor.author Haug, Rolf J.
dc.contributor.author Pierz, Klaus
dc.date.accessioned 2018-02-23T10:08:40Z
dc.date.available 2018-02-23T10:08:40Z
dc.date.issued 2008
dc.identifier.citation Sarkar, D.; Van Der Meulen, H.P.; Calleja, J.M.; Meyer, J.M.; Haug, R.J.; Pierz, K.: Resonant optical excitation of longitudinal-optical phonons and intermixing in InAsAlAs single quantum dots. In: Applied Physics Letters 92 (2008), Nr. 18, 181909. DOI: https://doi.org/10.1063/1.2920441
dc.description.abstract Excitations of a single InAsAlAs self-assembled quantum dot were investigated by photoluminescence excitation spectroscopy. Resonant absorption by longitudinal-optical (LO) phonons of the quantum dot and the barriers is observed. In particular, a resonance at 41 meV is attributed to the AlAs-like mode of InAlAs with low Al content. Our results represent a direct optical measure of the intermixing (estimated below 10%) in a single quantum dot. They also demonstrate that all LO phonons of this mixed quantum dot system couple to the exciton states. © 2008 American Institute of Physics. eng
dc.language.iso eng
dc.publisher College Park, MD : American Institute of Physics
dc.relation.ispartofseries Applied Physics Letters 92 (2008), Nr. 18
dc.rights Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
dc.subject Absorption spectra eng
dc.subject Excited states eng
dc.subject Phonons eng
dc.subject Photoexcitation eng
dc.subject Photoluminescence spectroscopy eng
dc.subject Resonance eng
dc.subject Semiconducting indium compounds eng
dc.subject Intermixing eng
dc.subject Photoluminescence excitation spectroscopy eng
dc.subject Resonant absorption eng
dc.subject Resonant optical excitation eng
dc.subject Single quantum dots eng
dc.subject Semiconductor quantum dots eng
dc.subject.ddc 530 | Physik ger
dc.title Resonant optical excitation of longitudinal-optical phonons and intermixing in InAsAlAs single quantum dots
dc.type Article
dc.type Text
dc.relation.issn 00036951
dc.relation.doi https://doi.org/10.1063/1.2920441
dc.bibliographicCitation.issue 18
dc.bibliographicCitation.volume 92
dc.bibliographicCitation.firstPage 181909
dc.description.version publishedVersion
tib.accessRights frei zug�nglich


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