Correlation between ablation efficiency and nanoparticle generation during the short-pulse laser ablation of metals

Jörg Hermann 1 Sylvie Noël 1 Tatiana Itina 1 E. Axente M. E. Povarnitsyn 1
1 LP3 - Laboratoire Lasers, Plasmas et Procédés photoniques
Abstract : The mechanisms of material ablation and nanoparticle generation from metal samples exposed to intense short laser pulses are experimentally investigated. We performed measurements of the ablated volume using optical microscopy and the analysis of the ablation plume by fast imaging. The results confirm the existence of two distinguished ablation regimes as a function of the laser fluence, and give a deeper insight in the involved physical mechanisms. Thus, both regimes are found to be related to the relative amount of atoms and nanoparticles within the plume. Comparing the results obtained for copper and gold, it is possible to determine the influence of electron-lattice coupling on the sample heat regime and the resulting plume properties.
keyword : nanoparticles ablation femtosecond laser
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Article dans une revue
Laser Physics, MAIK Nauka/Interperiodica, 2008, 18 (4), pp.374-379. 〈10.1134/s11490-008-4002-6〉
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https://hal-ujm.archives-ouvertes.fr/ujm-00376945
Contributeur : Tatiana Itina <>
Soumis le : lundi 20 avril 2009 - 15:36:02
Dernière modification le : jeudi 18 janvier 2018 - 02:22:05

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UNIV-ST-ETIENNE | UNIV-AMU | LP3

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Jörg Hermann, Sylvie Noël, Tatiana Itina, E. Axente, M. E. Povarnitsyn. Correlation between ablation efficiency and nanoparticle generation during the short-pulse laser ablation of metals. Laser Physics, MAIK Nauka/Interperiodica, 2008, 18 (4), pp.374-379. 〈10.1134/s11490-008-4002-6〉. 〈ujm-00376945〉

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