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Quantum dot spontaneous emission control in a ridge waveguide

hal.structure.identifierInstitut Nanosciences et Cryogénie [INAC]
hal.structure.identifierNanophysique et Semiconducteurs [NPSC]
dc.contributor.authorSTEPANOV, Petr
hal.structure.identifierInstitut Nanosciences et Cryogénie [INAC]
hal.structure.identifierNanophysique et Semiconducteurs [NPSC]
dc.contributor.authorDELGA, Adrien
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorZANG, Xiaorun
hal.structure.identifierInstitut Nanosciences et Cryogénie [INAC]
hal.structure.identifierNanophysique et Semiconducteurs [NPSC]
dc.contributor.authorBLEUSE, Joël
hal.structure.identifierInstitut Nanosciences et Cryogénie [INAC]
hal.structure.identifierNanophysique et Semiconducteurs [NPSC]
dc.contributor.authorDUPUY, Emmanuel
hal.structure.identifierInstitut Nanosciences et Cryogénie [INAC]
hal.structure.identifierNanophysique et Semiconducteurs [NPSC]
dc.contributor.authorPEINKE, Emanuel
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorLALANNE, Philippe
hal.structure.identifierInstitut Nanosciences et Cryogénie [INAC]
hal.structure.identifierNanophysique et Semiconducteurs [NPSC]
dc.contributor.authorGÉRARD, Jean-Michel
hal.structure.identifierInstitut Nanosciences et Cryogénie [INAC]
hal.structure.identifierNanophysique et Semiconducteurs [NPSC]
dc.contributor.authorCLAUDON, Julien
dc.date.accessioned2023-05-12T10:55:08Z
dc.date.available2023-05-12T10:55:08Z
dc.date.issued2015
dc.identifier.issn0003-6951
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/181932
dc.description.abstractEnWe investigate the spontaneous emission (SE) of self-assembled InAs quantum dots (QDs) embedded in GaAs ridge waveguides that lay on a low index substrate. In thin enough waveguides, the coupling to the fundamental guided mode is vanishingly small. A pronounced anisotropy in the coupling to non-guided modes is then directly evidenced by normal-incidence photoluminescence polarization measurements. In this regime, a measurement of the QD decay rate reveals a SE inhibition by a factor up to 4. In larger wires, which ensure an optimal transverse confinement of the fundamental guided mode, the decay rate approaches the bulk value. Building on the good agreement with theoretical predictions, we infer from calculations the fraction β of SE coupled to the fundamental guided mode for some important QD excitonic complexes. For a charged exciton (isotropic in plane optical dipole), β reaches 0.61 at maximum for an on-axis QD. In the case of a purely transverse linear optical dipole, β increases up to 0.91. This optimal configuration is achievable through the selective excitation of one of the bright neutral excitons.
dc.language.isoen
dc.publisherAmerican Institute of Physics
dc.title.enQuantum dot spontaneous emission control in a ridge waveguide
dc.typeArticle de revue
dc.identifier.doi10.1063/1.4906921
dc.subject.halPhysique [physics]/Physique [physics]/Optique [physics.optics]
bordeaux.journalApplied Physics Letters
bordeaux.page41112 - 121108
bordeaux.volume106
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-01381358
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01381358v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Applied%20Physics%20Letters&rft.date=2015&rft.volume=106&rft.spage=41112%20-%20121108&rft.epage=41112%20-%20121108&rft.eissn=0003-6951&rft.issn=0003-6951&rft.au=STEPANOV,%20Petr&DELGA,%20Adrien&ZANG,%20Xiaorun&BLEUSE,%20Jo%C3%ABl&DUPUY,%20Emmanuel&rft.genre=article


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