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Listening to laser sparks: a link between Laser-Induced Breakdown Spectroscopy, acoustic measurements and crater morphology

Chide, Baptiste and Maurice, Sylvestre and Murdoch, Naomi and Lasue, Jérémie and Bousquet, Bruno and Jacob, Xavier and Cousin, Agnès and Forni, Olivier and Gasnault, Olivier and Meslin, Pierre-Yves and Fronton, Jean-François and Bassas-Portús, Marti and Cadu, Alexandre and Sournac, Anthony and Mimoun, David and Wiens, Roger C. Listening to laser sparks: a link between Laser-Induced Breakdown Spectroscopy, acoustic measurements and crater morphology. (2019) Spectrochimica Acta Part B: Atomic Spectroscopy, 153. 50-60. ISSN 0584-8547

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Official URL: https://doi.org/10.1016/j.sab.2019.01.008

Abstract

In preparation for the SuperCam/Mars Microphone scientific investigation, the acoustic signal associated with the plasma formation during Laser-Induced Breakdown Spectroscopy (LIBS) experiment is studied with regard to the shot-to-shot evolution of the laser induced crater morphology and plasma emission lines. A set of geological targets are depth profiled using a specifically designed LIBS setup coupled with acoustic test bench under ambient terrestrial atmosphere. Experiments confirm that the decrease of the acoustic energy as a function of the number of shots is well correlated with the target hardness/density and also demonstrate that the acoustic energy can be used as a remote tracer of the ablated volume of the target. Listening to LIBS sparks provides a new information relative to the ablation process that is independent from the LIBS spectrum.

Item Type:Article
HAL Id:hal-02028808
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE)
French research institutions > Centre National d'Études Spatiales - CNES (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Los Alamos National Laboratory - LANL (USA)
Other partners > Université de Bordeaux (FRANCE)
Laboratory name:
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Deposited By: Baptiste Chide
Deposited On:19 Feb 2019 11:53

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