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Optical and structural characterization of femtosecond laser written micro-structures in germanate glass

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorZAITER, Rayan
hal.structure.identifierInstitut de Chimie Moléculaire et des Matériaux d'Orsay [ICMMO]
dc.contributor.authorLANCRY, Matthieu
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.authorDUSSAUZE, Marc
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorRODRIGUEZ, Vincent
hal.structure.identifierInstitut de Chimie Moléculaire et des Matériaux d'Orsay [ICMMO]
dc.contributor.authorPOUMELLEC, Bertrand
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCARDINAL, Thierry
dc.date.issued2023
dc.identifier.issn2045-2322
dc.description.abstractEnWe report on direct femtosecond laser writing in zinc barium gallo-germanate glasses. A combination of spectroscopic techniques allows to progress in the understanding of the mechanisms taking place depending on the energy. In the first regime (type I, isotropic local index change) up to 0.5 µJ, the main occurrence is the generation of charge traps inspected by luminescence, together with separation of charges detected by polarized second harmonic generation measurements. At higher pulse energies notably at the threshold corresponding to 0.8 µJ or in the second regime (type II modifications corresponding to nanograting formation energy domain), the main occurrence is a chemical change and reorganization of the network evidenced by the appearance of molecular O 2 seen in the Raman spectra. In addition, the polarization dependence of the second harmonic generation in type II indicates that the organization of nanogratings may be perturbed by the laser-imprinted electric field.
dc.description.sponsorshipFabrication 3D de composants optiques intégrés à bas cout par laser femtoseconde pour des applications IR - ANR-18-CE08-0004
dc.language.isoen
dc.publisherNature Publishing Group
dc.title.enOptical and structural characterization of femtosecond laser written micro-structures in germanate glass
dc.typeArticle de revue
dc.identifier.doi10.1038/s41598-023-35730-3
dc.subject.halChimie/Matériaux
bordeaux.journalScientific Reports
bordeaux.page11050
bordeaux.volume13
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-04164824
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04164824v1
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