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Isotropic octupolar second harmonic generation response in LaBGeO5 glass-ceramic with spherulitic precipitation

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLO, Nhat Truong
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorFARGIN, Evelyne
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorDUSSAUZE, Marc
hal.structure.identifierCentro de Quimica Estrutural [CQE]
dc.contributor.authorSANTOS, Luis
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorVIGOUROUX, Hélène
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorFARGUES, Alexandre
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorADAMIETZ, Frédéric
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorRODRIGUEZ, Vincent
dc.date.issued2015
dc.identifier.issn0003-6951
dc.description.abstractEnA spherulitic crystallization of the crystalline phase LaBGeO5 is generated in the 25La2O3-25B2O3-50 GeO2 glass system. Linear and nonlinear optical properties of lanthanum borogermanate glass-ceramic have been investigated at both macroscopic and microscopic scales. Polarized μ-Raman analysis has evidenced a radial distribution of the crystallites along the c-axis inside spherulites, whereas polarized μ-Second Harmonic Generation (SHG) analysis revealed intensity maxima perpendicularly to the c-axis crystallites orientation. Polarized SHG mapping of a spherulite indicate that no dipolar response along the c-axis oriented crystallites occurs despite the individual dipolar symmetry C3 of the crystallites. At a larger mm scale, the isotropic scattering of spherulites recorded from macroscopic SHG experiment in the forward direction is consistent with an average coherent octupolar response per spherulite. These SHG analyses at different scale are both in accordance with radial antiferroelectric orientation along the c-axis of crystallites inside each spherulite.
dc.language.isoen
dc.publisherAmerican Institute of Physics
dc.subject.enSecond harmonic generation
dc.subject.enPolarization
dc.subject.enOptical properties
dc.subject.enGlass transitions
dc.subject.enRaman spectra
dc.title.enIsotropic octupolar second harmonic generation response in LaBGeO5 glass-ceramic with spherulitic precipitation
dc.typeArticle de revue
dc.identifier.doi10.1063/1.4918808
dc.subject.halChimie/Matériaux
bordeaux.journalApplied Physics Letters
bordeaux.page161901 (4 p.)
bordeaux.volume106
bordeaux.issue16
bordeaux.peerReviewedoui
hal.identifierhal-01145534
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01145534v1
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