Ultrafast laser ablation in the GHz regime with a flexible repetition rate source

Hugo Delahaye; Valeria V. Belloni; Maxime Pinaud; Luca Furfaro; Lilia Pontagnier; Giorgio Santarelli; Eric Cormier; François Courvoisier

doi:10.1117/12.2650549

17 March 2023 Ultrafast laser ablation in the GHz regime with a flexible repetition rate source

Hugo Delahaye, Valeria V. Belloni, Maxime Pinaud, Luca Furfaro, Lilia Pontagnier, Giorgio Santarelli, Eric Cormier, François Courvoisier

Author Affiliations +

Proceedings Volume 12409, Laser-based Micro- and Nanoprocessing XVII; 124090Z (2023) https://doi.org/10.1117/12.2650549
Event: SPIE LASE, 2023, San Francisco, California, United States

Abstract

A considerable increase in the ultrafast laser ablation rate has been reported for bursts in the GHz regime, although with controversy. We report results of the European project kW-flexiburst, obtained with a novel ultrafast laser that is highly flexible. It has an architecture that enables flexibility in terms of repetition rate (up to 15 GHz) and the number of pulses within the burst. Our recent results shine new light on different aspects of the laser processing of materials with bursts in the GHz regime, providing arguments for the actual disputation. We believe this new laser source can open new perspectives for ultrafast laser processing.

Conference Presentation

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Hugo Delahaye, Valeria V. Belloni, Maxime Pinaud, Luca Furfaro, Lilia Pontagnier, Giorgio Santarelli, Eric Cormier, and François Courvoisier "Ultrafast laser ablation in the GHz regime with a flexible repetition rate source", Proc. SPIE 12409, Laser-based Micro- and Nanoprocessing XVII, 124090Z (17 March 2023); https://doi.org/10.1117/12.2650549

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