35 Papers
135 Citations
F. Bredice is an academic researcher from National Scientific and Technical Research Council. The author has contributed to research in topics: Laser-induced breakdown spectroscopy & Plasma. The author has an hindex of 11, co-authored 34 publications.
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Papers
Evaluation of self-absorption of manganese emission lines in Laser Induced Breakdown Spectroscopy measurements
F. Bredice,F.O. Borges,Hugo Sobral,Mayo Villagrán-Muniz,H. O. Di Rocco,Gabriele Cristoforetti,Stefano Legnaioli,Vincenzo Palleschi,L. Pardini,Azenio Salvetti,Elisabetta Tognoni +10 more
TL;DR: In this paper, a method for evaluating self-absorption coefficients in LIBS measurements is presented, which does not require the knowledge of Stark coefficients of the lines of interest and can be used for characterization and control of the experimental conditions in which the analysis is performed.
Measurement of Stark broadening of Mn I and Mn II spectral lines in plasmas used for Laser-Induced Breakdown Spectroscopy
F. Bredice,F.O. Borges,Hugo Sobral,Mayo Villagrán-Muniz,H. O. Di Rocco,Gabriele Cristoforetti,Stefano Legnaioli,Vincenzo Palleschi,Azenio Salvetti,Elisabetta Tognoni +9 more
TL;DR: In this paper, the effects of self-absorption on the measured line broadening in typical laser-induced plasmas are discussed in detail, and the experimental results evidence that selfabsorption is much higher in the case of double pulses, compared to the single pulse.
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A New Method for Determination of Self-Absorption Coefficients of Emission Lines in Laser-Induced Breakdown Spectroscopy Experiments
TL;DR: A new method for determining the self-absorption coefficients of emission lines in laser-induced breakdown spectroscopy experiments is presented, not requiring any knowledge of the plasma parameters such as temperature and electron number density and of the emission line spectral coefficients such as transition probability.
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Characterization of pulsed laser generated plasma through its perturbation in an electric field
TL;DR: In this article, the perturbation produced by pulsed laser generated discharge in an electric field is studied as a tool for breakdown characterization, which can be readily used to optimize the relevant parameters involved in laser-induced breakdown spectroscopy in gases and in solid targets.
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Real time measurement of the electron density of a laser generated plasma using a RC circuit
F. Bredice,Hugo Sobral,Mayo Villagrán-Muniz,H. O. Di Rocco,Gabriele Cristoforetti,Stefano Legnaioli,Vincenzo Palleschi,Azenio Salvetti,Elisabetta Tognoni +8 more
TL;DR: In this paper, a Nd:YAG laser pulse was focused, in air or on a Cu target, between the plates of a planar charged capacitor, and the peak of electrical signal measured on the resistor was, in the energy range of our laser (30mJ to 220mJ) and at time delays typical of Laser-Induced Breakdown Spectroscopy applications (500-5000 nns), univocally related to the temporal evolution of the Stark broadening of the Hα line.
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