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Comparative study between the standard type I and the type A femtosecond laser induced refractive index change in silver containing glasses

Comparative study between the standard type I and the type A femtosecond laser induced refractive index change in silver containing glasses

Authors :
Jean-Philippe Bérubé
Réal Vallée
Sylvain Danto
Thierry Cardinal
Lionel Canioni
Yannick Petit
Alain Abou Khalil
Centre d'Etudes Lasers Intenses et Applications (CELIA)
Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Bordeaux (UB)
Centre d'Optique, Photonique et Laser (COPL)
Université Laval [Québec] (ULaval)
Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB)
Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
This research was funded by French National Research Agency (ANR), in the framework of the 'Investments for the Future' program, with the reference number LAPHIA ANR - n °ANR-10-IDEX-03-02 and Natural Sciences and Engineering Research Council of Canada (NSERC) (CG101779), Canada Foundation for Inovation (CFI) (GF072345), and Fonds de Recherche du Québec-Nature et Technologies (FQRNT) (FT097991, CO201310). The project has also received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 823941. The authors would like to thank Stéphane Gagnon for cutting and polishing the glass samples.
ANR-10-IDEX-0003,IDEX BORDEAUX,Initiative d'excellence de l'Université de Bordeaux(2010)
Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)
Source :
Optical Materials Express, Optical Materials Express, OSA pub, 2019, 9 (6), pp.2640-2651. ⟨10.1364/OME.9.002640⟩, Optical Materials Express, 2019, 9 (6), pp.2640-2651. ⟨10.1364/OME.9.002640⟩
Publication Year :
2019
Publisher :
HAL CCSD, 2019.

Abstract

International audience; The femtosecond direct laser writing technique in glasses has been widely used and extensively studied during the last two decades. This technique provides a robust and efficient way to directly inscribe embedded 3D photonic devices in bulk glasses. Following direct laser writing, a local refractive index change (Δn) is induced that is generally classified under three distinguished types (type I, type II & type III). Each type allows for the fabrication of its own variety of 3D photonic components. However, in silver containing glasses, direct laser writing induces the creation of a new type of refractive index change, called type Argentum (type A). It is based on the creation of silver clusters that allow for the creation of optical waveguides. In this paper, we report that both type I and type Argentum modifications could be triggered in silver containing glasses by finely choosing the inscription parameters. A comparative study between both types of single mode waveguides is presented taking into account the morphology, Δn profile and the guided mode profile. Finally, we highlight the originality of type Argentum waveguides paving the way for promising applications not accessible by type I waveguides.

Details

Language :
English
ISSN :
21593930
Database :
OpenAIRE
Journal :
Optical Materials Express, Optical Materials Express, OSA pub, 2019, 9 (6), pp.2640-2651. ⟨10.1364/OME.9.002640⟩, Optical Materials Express, 2019, 9 (6), pp.2640-2651. ⟨10.1364/OME.9.002640⟩
Accession number :
edsair.doi.dedup.....12dadd9b4e4346f866a88d6c4129561d
Full Text :
https://doi.org/10.1364/OME.9.002640⟩