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

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

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

Document type :

Journal articles

Domain :

Engineering Sciences [physics] / Chemical and Process Engineering

Complete list of metadatas

https://hal-ujm.archives-ouvertes.fr/ujm-00376945
Contributor : Tatiana Itina <>
Submitted on : Monday, April 20, 2009 - 3:36:02 PM
Last modification on : Thursday, January 18, 2018 - 2:22:05 AM

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

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

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