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Title: The role of mass removal mechanisms in the onset of ns-laser induced plasma formation

Abstract

The present study focuses on the role of mass removal mechanisms in ns-laser ablation. A copper sample is placed in argon, initially set at standard pressure and temperature. Calculations are performed for a 6 ns laser pulse with a wavelength of 532 nm and laser fluences up to 10 J/cm{sup 2}. The transient behavior in and above the copper target is described by a hydrodynamic model. Transmission profiles and ablation depths are compared with experimental results and similar trends are found. Our calculations reveal an interesting self-inhibiting mechanism: volumetric mass removal in the supercritical region triggers plasma shielding and therefore stops proceeding. This self-limiting process indicates that volumetric mass removal does not necessarily result in large ablation depths.

Authors:
 [1];  [2];  [3];  [4];  [5];  [1]
  1. Department of Physics and Optimas Research Center, TU Kaiserslautern, 67653 Kaiserslautern (Germany)
  2. CEA, DAM, DIF, F-91297 Arpajon (France)
  3. CEA, DEN, SEARS, LANIE, F-91191 Gif-sur-Yvette (France)
  4. Department of Mathematics, University of Tennessee, 37996-1320 Knoxville, Tennessee (United States)
  5. Department of Chemistry, University of Antwerp, 2610 Wilrijk (Belgium)
Publication Date:
OSTI Identifier:
22122797
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 114; Journal Issue: 2; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABLATION; ARGON; COPPER; HYDRODYNAMICS; LASER RADIATION; LIGHT TRANSMISSION; MASS; PLASMA PRODUCTION; PULSES; TRANSIENTS; WAVELENGTHS

Citation Formats

Autrique, D., Department of Chemistry, University of Antwerp, 2610 Wilrijk, Clair, G., L'Hermite, D., Alexiades, V., Bogaerts, A., and Rethfeld, B. The role of mass removal mechanisms in the onset of ns-laser induced plasma formation. United States: N. p., 2013. Web. doi:10.1063/1.4812577.
Autrique, D., Department of Chemistry, University of Antwerp, 2610 Wilrijk, Clair, G., L'Hermite, D., Alexiades, V., Bogaerts, A., & Rethfeld, B. The role of mass removal mechanisms in the onset of ns-laser induced plasma formation. United States. https://doi.org/10.1063/1.4812577
Autrique, D., Department of Chemistry, University of Antwerp, 2610 Wilrijk, Clair, G., L'Hermite, D., Alexiades, V., Bogaerts, A., and Rethfeld, B. 2013. "The role of mass removal mechanisms in the onset of ns-laser induced plasma formation". United States. https://doi.org/10.1063/1.4812577.
@article{osti_22122797,
title = {The role of mass removal mechanisms in the onset of ns-laser induced plasma formation},
author = {Autrique, D. and Department of Chemistry, University of Antwerp, 2610 Wilrijk and Clair, G. and L'Hermite, D. and Alexiades, V. and Bogaerts, A. and Rethfeld, B.},
abstractNote = {The present study focuses on the role of mass removal mechanisms in ns-laser ablation. A copper sample is placed in argon, initially set at standard pressure and temperature. Calculations are performed for a 6 ns laser pulse with a wavelength of 532 nm and laser fluences up to 10 J/cm{sup 2}. The transient behavior in and above the copper target is described by a hydrodynamic model. Transmission profiles and ablation depths are compared with experimental results and similar trends are found. Our calculations reveal an interesting self-inhibiting mechanism: volumetric mass removal in the supercritical region triggers plasma shielding and therefore stops proceeding. This self-limiting process indicates that volumetric mass removal does not necessarily result in large ablation depths.},
doi = {10.1063/1.4812577},
url = {https://www.osti.gov/biblio/22122797}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 2,
volume = 114,
place = {United States},
year = {Sun Jul 14 00:00:00 EDT 2013},
month = {Sun Jul 14 00:00:00 EDT 2013}
}