| Texto completo | |
| Autor(es): |
Marcondes, Lia Mara
;
Orives, Juliane Resges
;
Nolasco, Lucas Konaka
;
Santos, Sabrina N. C.
;
Mendonca, Cleber Renato
;
Cardinal, Thierry
;
Petit, Yannick
;
Canioni, Lionel
;
Dussauze, Marc
;
Nalin, Marcelo
Número total de Autores: 10
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Optical Materials; v. 159, p. 7-pg., 2024-12-18. |
| Resumo | |
Three-dimensional (3D) microstructures were written by femtosecond (fs) laser aiming to manufacture waveguides inside niobium germanate glasses. The laser-induced damage threshold using 1030 nm fs-laser irradiation was investigated, and the waveguides were written in different fluences. The morphology, structural information and refractive index changes of microstructures were discussed. The waveguide cross-section microscopy data shows an elliptical shape with a diameter varying with the applied pulse energy. The micro-Raman maps demonstrate the occurrence of structural modifications with different microregions along the laser propagation direction. The refractive index profiles point to the formation of at least one microregion containing a positive refractive index change along the laser propagation. Guided light transmission measurements demonstrate the formation of single-mode waveguides inscribed at low pulse energy (up to 132 nJ) and an emitting waveguide in the rare-earth-doped sample. The visible luminescent response of erbium ions in the waveguide output was demonstrated and supports the possibility of using these core waveguides for future 3D multi-functional photonic devices operating in the visible region. (AU) | |
| Processo FAPESP: | 20/01786-1 - Óptica não-linear e magneto-óptica em vidros e vitrocerâmicas contendo nióbio e tântalo |
| Beneficiário: | Lia Mara Silva Marcondes |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 21/11494-0 - Fabricação de um microdispositivos vítreos contendo nióbio e tântalo |
| Beneficiário: | Lia Mara Silva Marcondes |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado |
| Processo FAPESP: | 13/07793-6 - CEPIV - Centro de Ensino, Pesquisa e Inovação em Vidros |
| Beneficiário: | Edgar Dutra Zanotto |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |