Adaptive optics solution to improve laser-induced periodic surface structuring (LIPSS)

Vincenzina Siciliani; Giulia Zaniboni; Riccardo Pelaccia; Manuel Mazzonetto; Keltoum Oubellaouch; Stefano Bonora; Leonardo Orazi

doi:10.1117/12.3002613

12 March 2024 Adaptive optics solution to improve laser-induced periodic surface structuring (LIPSS)

Vincenzina Siciliani, Giulia Zaniboni, Riccardo Pelaccia, Manuel Mazzonetto, Keltoum Oubellaouch, Stefano Bonora, Leonardo Orazi

Author Affiliations +

Proceedings Volume 12873, Laser-based Micro- and Nanoprocessing XVIII; 1287306 (2024) https://doi.org/10.1117/12.3002613
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

Laser-Induced Periodic Surface Structures (LIPSS) are normally created to induce peculiar surface properties but, despite their interesting properties, LIPSS generation has a main drawback which is its low throughput rate. This limits applications on large surfaces. In this work, adaptive optics is used to increase productivity, and processing tests are conducted on stainless steel and nickel-titanium alloy as examples of surfaces for biomedical and luxury applications. The use of a deformable mirror to dynamically control the wavefront and the spatial energy distribution at the focal point of a picosecond laser is introduced and discussed. The shape of the focused beam is theoretically predicted and experimentally investigated with a sub-micron, high-resolution beam profiler. The shape obtained in the focus can be dynamically controlled at the level of the single vector to be scanned. Results confirm that this method can overcome the aforementioned limitations and significantly increase the throughput rate in LIPSS generation.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Vincenzina Siciliani, Giulia Zaniboni, Riccardo Pelaccia, Manuel Mazzonetto, Keltoum Oubellaouch, Stefano Bonora, and Leonardo Orazi "Adaptive optics solution to improve laser-induced periodic surface structuring (LIPSS)", Proc. SPIE 12873, Laser-based Micro- and Nanoprocessing XVIII, 1287306 (12 March 2024); https://doi.org/10.1117/12.3002613

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