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5 March 2021 Femtosecond laser writing of Volume Bragg Gratings in silver-containing glasses for VIS-NIR applications
Laura Loi, Alain Abou Khalil, Théo Guerineau, Romain Laberdesque, Thierry Cardinal, Yannick Petit, Lionel Canioni
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Proceedings Volume 11676, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXI; 1167617 (2021) https://doi.org/10.1117/12.2578833
Event: SPIE LASE, 2021, Online Only
Abstract
Volume Bragg Gratings (VBG) are inscribed in the bulk of non-conventional photosensitive glasses tailored with silver by means of femtosecond laser irradiation.
Thanks to intrinsic features of the spatial distribution of silver-sustained inscribed structures, it is possible to fabricate gratings with sub-wavelength periodic refractive index modulation. As a result, the achieved VBG target first-order Bragg reflection in the VIS - NIR spectral range. This work paves the way to manufacturing more complex optical devices, such as Waveguide Bragg Gratings.
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Laura Loi, Alain Abou Khalil, Théo Guerineau, Romain Laberdesque, Thierry Cardinal, Yannick Petit, and Lionel Canioni "Femtosecond laser writing of Volume Bragg Gratings in silver-containing glasses for VIS-NIR applications", Proc. SPIE 11676, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXI, 1167617 (5 March 2021); https://doi.org/10.1117/12.2578833
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KEYWORDS
Glasses
Femtosecond phenomena
Volume Bragg gratings
Near infrared
Refractive index
Modulation
Silver
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