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Femtosecond laser writing of near-surface waveguides for refractive-index sensing

hal.structure.identifierCentre d'Optique, Photonique et Laser [COPL]
hal.structure.identifierCentre d'Etudes Lasers Intenses et Applications [CELIA]
dc.contributor.authorKHALIL, Alain Abou
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorLALANNE, Philippe
hal.structure.identifierCentre d'Optique, Photonique et Laser [COPL]
dc.contributor.authorBÉRUBÉ, Jean-Philippe
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierCentre d'Etudes Lasers Intenses et Applications [CELIA]
dc.contributor.authorPETIT, Yannick
hal.structure.identifierCentre d'Optique, Photonique et Laser [COPL]
dc.contributor.authorVALLÉE, Réal
hal.structure.identifierCentre d'Etudes Lasers Intenses et Applications [CELIA]
dc.contributor.authorCANIONI, Lionel
dc.date.accessioned2023-05-12T10:40:51Z
dc.date.available2023-05-12T10:40:51Z
dc.date.issued2019
dc.identifier.issn1094-4087
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/181609
dc.description.abstractEnFemtosecond laser writing of optical waveguides and components in glasses has been a remarkably growing research field during the last two decades. However, such laser- inscribed optical components were mostly written within the volume of the glass due to the unavoidable ablation that arises when the focal spot is approaching the glass surface. This has generally limited the interaction of light with the surrounding medium thus preventing sensing functionality. In this paper, we present the inscription of surface and near-surface silver based waveguides in a silver containing glass with no need for additional processing as it is the case for standard type I waveguides. In addition, an ultra-sensitive refractive index sensor in a 1 cm glass chip is obtained based on near-surface waveguides interacting with liquid droplets acting as top-layer on the glass surface. Remarkably, the device exhibits a novel double-wing feature that sharpens the response and enhances its sensitivity. Our results highlight the advantages of silver based waveguides paving the way towards further surface based sensors in fibers.
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
dc.language.isoen
dc.publisherOptical Society of America - OSA Publishing
dc.title.enFemtosecond laser writing of near-surface waveguides for refractive-index sensing
dc.typeArticle de revue
dc.identifier.doi10.1364/OE.27.031130
dc.subject.halChimie/Matériaux
dc.subject.halSciences de l'ingénieur [physics]/Optique / photonique
bordeaux.journalOptics Express
bordeaux.page31130
bordeaux.volume27
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.issue22
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-02316871
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02316871v1
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