POIRIER, Gael; KARAM, Lara; RODRIGUEZ, Vincent; ADAMIETZ, Frédéric; CARDINAL, Thierry; EVELYNE, Fargin; DUSSAUZE, Marc

doi:10.1039/D2TC01634F

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POIRIER, Gael
Federal University of Alfenas

KARAM, Lara
Institut des Sciences Moléculaires [ISM]

RODRIGUEZ, Vincent
Institut des Sciences Moléculaires [ISM]

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Article de revue

Ce document a été publié dans

Journal of Materials Chemistry C. 2022, vol. 10, n° 28, p. 10310-10319

Royal Society of Chemistry

Résumé en anglais

Sodium tantalum germanate glasses were thermally poled using microstructured metallic anodes of two distinct geometries. The topological, structural and optical characterization studies of micro-imprinted structures revealed an accurate reproducibility of the electrode patterns on the glass surface with strong edge effects between the poled and unpoled areas. Spatial reliefs of 100 nm depth were achieved and associated with glass network rearrangements due to sodium departure in the conductive anodic patterns. Second harmonic signals originating from both longitudinal and in-plane static electric fields were identified mainly near the borders of imprinted structures and related to a specific charge distribution model. Spatially controlled positive refractive index changes around 7 to 9 × 10−3 could be induced, opening opportunities for microscaled active optical devices operating in the middle infrared region.< Réduire

DOI

http://dx.doi.org/10.1039/D2TC01634F

Projet Européen

Centre for functional and surface-functionalized glasses

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Importé de hal

Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026