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Nonlinear properties and structural rearrangements in thermally poled niobium germanate glasses

hal.structure.identifierUniversidade Estadual Paulista Júlio de Mesquita Filho = São Paulo State University [UNESP]
dc.contributor.authorMARCONDES, Lia Mara
hal.structure.identifierUniversidade Estadual Paulista Júlio de Mesquita Filho = São Paulo State University [UNESP]
dc.contributor.authorORIVES, Juliane Resges
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorADAMIETZ, Frédéric
hal.structure.identifierFederal University of Alfenas
dc.contributor.authorPOIRIER, Gael Yves
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCARDINAL, Thierry
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorDUSSAUZE, Marc
hal.structure.identifierUniversidade Estadual Paulista Júlio de Mesquita Filho = São Paulo State University [UNESP]
dc.contributor.authorNALIN, Marcelo
dc.date.accessioned2024-01-25T03:11:07Z
dc.date.available2024-01-25T03:11:07Z
dc.date.issued2024
dc.identifier.issn0022-3093
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/187504
dc.description.abstractEnSecond order nonlinear optical properties and structural rearrangements in GeO 2-Na 2 O-Nb 2 O 5 glasses were achieved by thermal poling. The effects of applied voltage as well as sodium and niobium contents on nonlinear optical (NLO)-active layer were investigated. Structural rearrangements in the anodic microlayer were investigated and occur due to sodium depletion promoting variation in bridging/non-bridging oxygen ratio and formation of a more polymerized network. Quantitative analysis of second harmonic generation signals confirm the electrooptical origin of the nonlinear optical response described by the electric-field-induced second harmonic model. χ (2) susceptibility values range from 0.42 to 0.76 pm/V depending on the niobium content. Lastly, the charge compensation mechanism with increasing applied voltage was described in detail. A progressive decrease in χ (2) for higher voltages was observed due to a greater poled thickness than expected by classical electrostatic models. In this case, the compensation mechanism occurs due to structural rearrangement, redox reactions, and motion of negative charges.
dc.language.isoen
dc.publisherElsevier
dc.subject.enGlass
dc.subject.enThermal poling
dc.subject.enNonlinear optics
dc.title.enNonlinear properties and structural rearrangements in thermally poled niobium germanate glasses
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jnoncrysol.2023.122809
dc.subject.halChimie/Matériaux
dc.description.sponsorshipEuropeCentre for functional and surface-functionalized glasses
bordeaux.journalJournal of Non-Crystalline Solids
bordeaux.page122809
bordeaux.volume627
bordeaux.hal.laboratoriesInstitut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-04410194
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04410194v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Non-Crystalline%20Solids&rft.date=2024&rft.volume=627&rft.spage=122809&rft.epage=122809&rft.eissn=0022-3093&rft.issn=0022-3093&rft.au=MARCONDES,%20Lia%20Mara&ORIVES,%20Juliane%20Resges&ADAMIETZ,%20Fr%C3%A9d%C3%A9ric&POIRIER,%20Gael%20Yves&CARDINAL,%20Thierry&rft.genre=article


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