Single and double pulse irradiation and comparison with experimental results

L. Fornarini, R. Fantoni, F. Colao, A. Santagata, R. Teghil

Research output: Contribution to conferencePaper

4 Citations (Scopus)

Abstract

A theoretical model of laser ablation has been previously developed and applied to Laser Induced Breakdown Spectroscopy (LIBS) analysis of bronzes with the aim to improve quantitative results and to focus on problems arising in the interpretation of experimental data. The model describes laser-solid matter interaction, plume expansion, plasma formation and laser-plasma interaction. A two temperature approach has been also introduced to take into account the initial temperature dynamics of the alloy surface upon ultra-short laser irradiation. We examined various target compositions, typical of archaeological artworks, and different laser characteristics such as wavelength (355 nm, 530 nm, 1064 nm) and pulse duration (8 ns, 250 fs). In this work, the model has been extended to simulate double pulse LIBS configuration in order to clarify the mechanism involved in the process and for better interpreting the experimental data. Plasma composition, relevant parameters (temperature, electron density) and their kinetic evolutions have been measured. Results have been compared with the simulation obtained using the same irradiation conditions and set of targets. © 2009 American Institute of Physics.
Original languageEnglish
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event7th International Conference on Laser Applications, ICLA 2009 - , Egypt
Duration: 1 Jan 2009 → …

Conference

Conference7th International Conference on Laser Applications, ICLA 2009
CountryEgypt
Period1/1/09 → …

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Fornarini, L., Fantoni, R., Colao, F., Santagata, A., & Teghil, R. (2009). Single and double pulse irradiation and comparison with experimental results. Paper presented at 7th International Conference on Laser Applications, ICLA 2009, Egypt. https://doi.org/10.1063/1.3250124