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.
© 2017 Optical Society of America
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