ZAITER, Rayan; LANCRY, Matthieu; FARGUES, Alexandre; ADAMIETZ, Frédéric; DUSSAUZE, Marc; RODRIGUEZ, Vincent; POUMELLEC, Bertrand; CARDINAL, Thierry

doi:10.1038/s41598-023-35730-3

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ZAITER, Rayan
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

LANCRY, Matthieu
Institut de Chimie Moléculaire et des Matériaux d'Orsay [ICMMO]

FARGUES, Alexandre
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Article de revue

Ce document a été publié dans

Scientific Reports. 2023, vol. 13, n° 1, p. 11050

Nature Publishing Group

Résumé en anglais

We 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.< Réduire

DOI

http://dx.doi.org/10.1038/s41598-023-35730-3

Project ANR

Fabrication 3D de composants optiques intégrés à bas cout par laser femtoseconde pour des applications IR - ANR-18-CE08-0004

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Importé de hal

Unités de recherche

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