Femtosecond, picosecond, and nanosecond laser microablation: laser plasma and crater investigation

Alexandre F. Semerok; Beatrice Salle; Jean-Luc Lacour; J.-F. Wagner; Guillaume Petite; Olivier Gobert; Pierre Meynadier; Michel Perdrix

doi:10.1117/12.425562

23 April 2001 Femtosecond, picosecond, and nanosecond laser microablation: laser plasma and crater investigation

Alexandre F. Semerok, Beatrice Salle, Jean-Luc Lacour, J.-F. Wagner, Guillaume Petite, Olivier Gobert, Pierre Meynadier, Michel Perdrix

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Proceedings Volume 4424, ECLIM 2000: 26th European Conference on Laser Interaction with Matter; (2001) https://doi.org/10.1117/12.425562
Event: 26th European Conference on Laser Interaction with Matter (ECLIM 2000), 2000, Prague, Czech Republic

Abstract

Crater shapes and plasma plume expansion in the interaction of sharply focused laser beams with metals in air at atmospheric pressure were studied. Laser ablation efficiencies and rates of plasma expansion were obtained. The best ablation efficiency was observed with femtosecond laser pulses. It was found that for nanosecond pulses the laser beam absorption, its scattering and reflection in plasma were the limiting factors for efficient laser ablation and precise material sampling with sharply focused laser beams. The experimental results obtained were analyzed with relation to different theoretical models of laser ablation.

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Alexandre F. Semerok, Beatrice Salle, Jean-Luc Lacour, J.-F. Wagner, Guillaume Petite, Olivier Gobert, Pierre Meynadier, and Michel Perdrix "Femtosecond, picosecond, and nanosecond laser microablation: laser plasma and crater investigation", Proc. SPIE 4424, ECLIM 2000: 26th European Conference on Laser Interaction with Matter, (23 April 2001); https://doi.org/10.1117/12.425562

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