Creation and orientation of nano-crystals by femtosecond laser light for controlling optical nonlinear response in silica-based glasses

J. Cao; F. Brisset; L. Mazerolles; M. Lancry; B. Poumellec

2017 Conference on Lasers and Electro-Optics Pacific Rim
(Optica Publishing Group, 2017),
paper s1462

Creation and orientation of nano-crystals by femtosecond laser light for controlling optical nonlinear response in silica-based glasses

J. Cao, F. Brisset, L. Mazerolles, M. Lancry, and B. Poumellec

Conference on Lasers and Electro-Optics/Pacific Rim 2017

Singapore Singapore
31 July–4 August 2017
ISBN: 978-1-5090-6290-4

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Poster Session I (PSI)

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J. Cao, F. Brisset, L. Mazerolles, M. Lancry, and B. Poumellec, "Creation and orientation of nano-crystals by femtosecond laser light for controlling optical nonlinear response in silica-based glasses," in 2017 Conference on Lasers and Electro-Optics Pacific Rim, (Optica Publishing Group, 2017), paper s1462.

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Abstract

We explore the femtosecond laser-induced modifications (i.e., morphology, crystallization, and nanostructure) in Li₂O-Nb₂O₅-SiO₂ glass at high-repetition-rate (1030nm, 300fs, 300 kHz) to get insight on the ultrafast laser-matter interaction according to pulse energy and writing configuration. Three-dimensional SHG patterns with controllable angular dependence were achieved. Electron backscatter diffraction indicated that the angular dependence was associated to preferential nanocrystals orientation: crystal polar axes are distributed within a plane perpendicular to the incident laser polarization direction.

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