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

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dc.contributor.author Juska, Gediminas
dc.contributor.author Murray, Éamonn D.
dc.contributor.author Dimastrodonato, Valeria
dc.contributor.author Chung, Tung-Hsun
dc.contributor.author Moroni, Stefano T.
dc.contributor.author Gocalińska, Agnieszka M.
dc.contributor.author Pelucchi, Emanuele
dc.date.accessioned 2017-09-20T10:06:31Z
dc.date.available 2017-09-20T10:06:31Z
dc.date.issued 2015
dc.identifier.citation 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: 10.1063/1.4916705 en
dc.identifier.volume 117
dc.identifier.issued 13
dc.identifier.startpage 1
dc.identifier.endpage 11
dc.identifier.issn 0021-8979
dc.identifier.issn 1089-7550
dc.identifier.uri http://hdl.handle.net/10468/4714
dc.identifier.doi 10.1063/1.4916705
dc.description.abstract A 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.sponsorship Higher Education Authority (INSPIRE programme]
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher AIP Publishing en
dc.relation.uri http://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/10.1063/1.4916705 en
dc.subject Quantum dots en
dc.subject Photons en
dc.subject Charged excitons en
dc.subject Entanglement measures en
dc.subject Epitaxy en
dc.subject Pairs en
dc.subject Wells en
dc.subject Excitons en
dc.title Conditions for entangled photon emission from (111)B site-controlled pyramidal quantum dots en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Gediminas Juska, Tyndall National Institute, University College Cork, Cork, Ireland +353-21-490-3000 Email: gediminas.juska@tyndall.ie en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.contributor.funder Higher Education Authority
dc.contributor.funder Science Foundation Ireland
dc.contributor.funder FP7 People: Marie-Curie Actions
dc.description.status Peer reviewed en
dc.identifier.journaltitle Journal of Applied Physics en
dc.internal.IRISemailaddress gediminas.juska@tyndall.ie en
dc.identifier.articleid 134302
dc.relation.project info: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.project info: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.project info:eu-repo/grantAgreement/EC/FP7::SP3::PEOPLE/268300/EU/Extending the sensitivity of MOVPE grown pyramidal quantum dots into near infrared/NIRAMIDS


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