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High-intensity ultrashort laser-induced ablation of stainless steel foil targets in the presence of ambient gas

Published online by Cambridge University Press:  22 July 2003

A. DI BERNARDO
Affiliation:
Dipartimento di Fisica “G.Occhialini” and INFM, Università degli Studi di Milano–Bicocca, Milano, Italy
C. COURTOIS
Affiliation:
LPGP, UMR 8578 Centre National de la Recherche Scientifique Université Paris XI, Orsay Cèdex, France
B. CROS
Affiliation:
LPGP, UMR 8578 Centre National de la Recherche Scientifique Université Paris XI, Orsay Cèdex, France
G. MATTHIEUSSENT
Affiliation:
LPGP, UMR 8578 Centre National de la Recherche Scientifique Université Paris XI, Orsay Cèdex, France
D. BATANI
Affiliation:
Dipartimento di Fisica “G.Occhialini” and INFM, Università degli Studi di Milano–Bicocca, Milano, Italy
T. DESAI
Affiliation:
Dipartimento di Fisica “G.Occhialini” and INFM, Università degli Studi di Milano–Bicocca, Milano, Italy
F. STRATI
Affiliation:
Dipartimento di Fisica “G.Occhialini” and INFM, Università degli Studi di Milano–Bicocca, Milano, Italy
G. LUCCHINI
Affiliation:
Dipartimento di Fisica “G.Occhialini” and INFM, Università degli Studi di Milano–Bicocca, Milano, Italy

Abstract

Ablation depths of stainless steel targets irradiated by 80-fs laser pulses at a flux F ≤ 40 J/cm2 (intensity ≤ 5 × 1014 W/cm2) in the presence of air at atmospheric pressure are experimentally measured. These values are lower than the theoretical predictions for metal targets in vacuum. Results are analyzed on the basis of the role of the ambient gas and of crater formation on the behavior of the ablated material.

Type
Research Article
Copyright
2003 Cambridge University Press

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