Conditions for entangled photon emission from (111)B site-controlled pyramidal quantum dots

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dc.contributor.authorJuska, Gediminas
dc.contributor.authorMurray, Éamonn D.
dc.contributor.authorDimastrodonato, Valeria
dc.contributor.authorChung, Tung-Hsun
dc.contributor.authorMoroni, Stefano T.
dc.contributor.authorGocalińska, Agnieszka M.
dc.contributor.authorPelucchi, Emanuele
dc.contributor.funderHigher Education Authority
dc.contributor.funderScience Foundation Ireland
dc.contributor.funderFP7 People: Marie-Curie Actions
dc.date.accessioned2017-09-20T10:06:31Z
dc.date.available2017-09-20T10:06:31Z
dc.date.issued2015
dc.description.abstractA study of highly symmetric site-controlled Pyramidal In0.25Ga0.75As quantum dots (QDs) is presented. It is discussed that polarization-entangled photons can be also obtained from Pyramidal QDs of different designs from the one already reported in Juska et al. (Nat. Phot. 7, 527, 2013). Moreover, some of the limitations for a higher density of entangled photon emitters are addressed. Among these issues are (1) a remaining small fine-structure splitting and (2) an effective QD charging under non-resonant excitation conditions, which strongly reduce the number of useful biexciton-exciton recombination events. A possible solution of the charging problem is investigated exploiting a dual-wavelength excitation technique, which allows a gradual QD charge tuning from strongly negative to positive and, eventually, efficient detection of entangled photons from QDs, which would be otherwise ineffective under a single-wavelength (non-resonant) excitation. (C) 2015 AIP Publishing LLC.en
dc.description.sponsorshipHigher Education Authority (INSPIRE programme]
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid134302
dc.identifier.citationJuska, G., Murray, E., Dimastrodonato, V., Chung, T. H., Moroni, S. T., Gocalinska, A. and Pelucchi, E. (2015) 'Conditions for entangled photon emission from (111)B site-controlled pyramidal quantum dots', Journal of Applied Physics, 117(13), 134302 (10pp). doi: 10.1063/1.4916705en
dc.identifier.doi10.1063/1.4916705
dc.identifier.endpage11
dc.identifier.issn0021-8979
dc.identifier.issn1089-7550
dc.identifier.issued13
dc.identifier.journaltitleJournal of Applied Physicsen
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/10468/4714
dc.identifier.volume117
dc.language.isoenen
dc.publisherAIP Publishingen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Principal Investigator Programme (PI)/10/IN.1/I3000/IE/Controlling deterministically engineered III-V nanostructures: towards quantum information devices/
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Frontiers Programme (RFP)/08/RFP/MTR1659/IE/A new approach to long-wavelength ordered site-controlled semiconductor nanowires/
dc.relation.projectinfo:eu-repo/grantAgreement/EC/FP7::SP3::PEOPLE/268300/EU/Extending the sensitivity of MOVPE grown pyramidal quantum dots into near infrared/NIRAMIDS
dc.relation.urihttp://aip.scitation.org/doi/10.1063/1.4916705
dc.rights© 2015 AIP Publishing LLC. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Juska, G., Murray, E., Dimastrodonato, V., Chung, T. H., Moroni, S. T., Gocalinska, A. and Pelucchi, E. (2015) 'Conditions for entangled photon emission from (111)B site-controlled pyramidal quantum dots', Journal of Applied Physics, 117(13), 134302 (10pp). doi: 10.1063/1.49167051 and may be found at http://aip.scitation.org/doi/10.1063/1.4916705en
dc.subjectQuantum dotsen
dc.subjectPhotonsen
dc.subjectCharged excitonsen
dc.subjectEntanglement measuresen
dc.subjectEpitaxyen
dc.subjectPairsen
dc.subjectWellsen
dc.subjectExcitonsen
dc.titleConditions for entangled photon emission from (111)B site-controlled pyramidal quantum dotsen
dc.typeArticle (peer-reviewed)en
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