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Title: Laser ablation dynamics in metals: The thermal regime

Abstract

We studied the laser ablation dynamics of steel in the thermal regime both experimentally and theoretically. The real-time monitoring of the process shows that the ablation rate depends on laser energy density and ambient pressure during the exposure time. We demonstrated that the ablation efficiency can be enhanced when the pressure is reduced with respect to the atmospheric pressure for a given laser fluence, reaching an upper limit despite of high-vacuum conditions. An analytical model based on the Hertz-Knudsen law reproduces all the experimental results.

Authors:
; ; ;  [1];  [1]; ;  [1]
  1. CNR-IFN UOS Bari, via Amendola 173, I-70126 Bari (Italy)
Publication Date:
OSTI Identifier:
22089258
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 101; Journal Issue: 1; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABLATION; ATMOSPHERIC PRESSURE; EFFICIENCY; ENERGY DENSITY; LASER RADIATION; METALS; STEELS

Citation Formats

Mezzapesa, F. P., Brambilla, M., Dabbicco, M., Scamarcio, G., Dipartimento Interateneo di Fisica, Universita degli Studi e Politecnico di Bari, via Amendola 173, I-70126 Bari, Columbo, L. L., Dipartimento di Scienza ed Alta tecnologia, Universita dell'Insubria, via Valleggio 11, 22100 Como, Ancona, A., and Sibillano, T. Laser ablation dynamics in metals: The thermal regime. United States: N. p., 2012. Web. doi:10.1063/1.4732507.
Mezzapesa, F. P., Brambilla, M., Dabbicco, M., Scamarcio, G., Dipartimento Interateneo di Fisica, Universita degli Studi e Politecnico di Bari, via Amendola 173, I-70126 Bari, Columbo, L. L., Dipartimento di Scienza ed Alta tecnologia, Universita dell'Insubria, via Valleggio 11, 22100 Como, Ancona, A., & Sibillano, T. Laser ablation dynamics in metals: The thermal regime. United States. https://doi.org/10.1063/1.4732507
Mezzapesa, F. P., Brambilla, M., Dabbicco, M., Scamarcio, G., Dipartimento Interateneo di Fisica, Universita degli Studi e Politecnico di Bari, via Amendola 173, I-70126 Bari, Columbo, L. L., Dipartimento di Scienza ed Alta tecnologia, Universita dell'Insubria, via Valleggio 11, 22100 Como, Ancona, A., and Sibillano, T. 2012. "Laser ablation dynamics in metals: The thermal regime". United States. https://doi.org/10.1063/1.4732507.
@article{osti_22089258,
title = {Laser ablation dynamics in metals: The thermal regime},
author = {Mezzapesa, F. P. and Brambilla, M. and Dabbicco, M. and Scamarcio, G. and Dipartimento Interateneo di Fisica, Universita degli Studi e Politecnico di Bari, via Amendola 173, I-70126 Bari and Columbo, L. L. and Dipartimento di Scienza ed Alta tecnologia, Universita dell'Insubria, via Valleggio 11, 22100 Como and Ancona, A. and Sibillano, T.},
abstractNote = {We studied the laser ablation dynamics of steel in the thermal regime both experimentally and theoretically. The real-time monitoring of the process shows that the ablation rate depends on laser energy density and ambient pressure during the exposure time. We demonstrated that the ablation efficiency can be enhanced when the pressure is reduced with respect to the atmospheric pressure for a given laser fluence, reaching an upper limit despite of high-vacuum conditions. An analytical model based on the Hertz-Knudsen law reproduces all the experimental results.},
doi = {10.1063/1.4732507},
url = {https://www.osti.gov/biblio/22089258}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 1,
volume = 101,
place = {United States},
year = {Mon Jul 02 00:00:00 EDT 2012},
month = {Mon Jul 02 00:00:00 EDT 2012}
}