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dc.contributor.authorMartín-Sánchez, Javier-
dc.contributor.authorSerna, Rosalía-
dc.contributor.authorToudert, Johann-
dc.contributor.authorAlén, Benito-
dc.contributor.authorBallesteros, Carmen-
dc.date.accessioned2015-03-02T15:58:23Z-
dc.date.available2015-03-02T15:58:23Z-
dc.date.issued2014-08-06-
dc.identifierissn: 1539-4794-
dc.identifier.citationOptics Letters 39(16): 4691-4694 (2014)-
dc.identifier.urihttp://hdl.handle.net/10261/111652-
dc.description4 pags.; 4 figs.; OCIS Codes (130.3130) Integrated optics : Integrated optics materials (140.3390) Lasers and laser optics : Laser materials processing; (160.5690) Materials : Rare-earth-doped materials; (250.5230) Optoelectronics : Photoluminescence (160.4236) Materials : Nanomaterials (250.5590) Optoelectronics : Quantum-well, -wire and -dot devices.-
dc.description.abstractThe potential of Ge nanoparticles (NPs) embedded in Al2O 3 with tunable effective optical bandgap values in the range of 1.0-3.3 eV to induce enhanced Er3+ light emission is investigated. We demonstrate nonresonant indirect excitation of the Er3+ ions mediated by the Ge NPs at room temperature. Efficient Er3+ light emission enhancement is obtained for Ge NPs with large effective optical bandgaps in the range of 1.85 to 2.8 eV. The coupled Ge NP-Er emission shows a negligible thermal quenching from 10 K to room temperature that is related to Er3+ de-excitation through thermally activated defect states. © 2014 Optical Society of America.-
dc.description.sponsorshipThis work has been financially supported by projects TEC2012-38901-C02-01, TEC2011-29120-C05-04, MAT2011-13333E, and P2009/ESP-1503 (Spain). J. M.-S. acknowledges support through the JAE-DOC-070/01 CSIC grant cofunded by FSE and J. T. from JCI grant JCI2009-05098.-
dc.publisherOptical Society of America-
dc.rightsclosedAccess-
dc.titleSize-controlled Ge nanostructures for enhanced Er3+ light emission-
dc.typeArtículo-
dc.identifier.doi10.1364/OL.39.004691-
dc.relation.publisherversionhttp://dx.doi.org/10.1364/OL.39.004691-
dc.date.updated2015-03-02T15:58:23Z-
dc.description.versionPeer Reviewed-
dc.language.rfc3066eng-
dc.contributor.funderMinisterio de Economía y Competitividad (España)-
dc.contributor.funderEuropean Commission-
dc.contributor.funderConsejo Superior de Investigaciones Científicas (España)-
dc.relation.csic-
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003339es_ES
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