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Développement de la technique de la double impulsion laser pour améliorer les performances analytiques de l'Ablation Laser couplée à la Spectrométrie d'Emission Optique (AL/SEO) sur solides. Applications nucléaires et géologiques.

Abstract : The double-pulse technique has been developed to improve the analytical performance of Laser Ablation coupled to Optical Emission Spectroscopy (LA/OES). This approach relies on the addition of a second time-resolved laser pulse to the classical LA/OES system. It has been studied on aluminium alloys according to different geometries of the two laser beams (orthogonal and collinear geometries) before being applied to different materials (synthetic glass, rock, steel, sodium chloride). The increase in emission intensity depends on the temporal parameters, on the excitation energy level of the emission line, on the concentration of the studied element and on the analyzed matrix. The double-pulse LA/OES technique can be particularly interesting to improve the sensitivity towards vitreous matrices containing elements emitting lines with high excitation energy levels.
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https://tel.archives-ouvertes.fr/tel-00011366
Contributor : Céline Gautier <>
Submitted on : Thursday, January 12, 2006 - 2:09:08 PM
Last modification on : Wednesday, November 4, 2020 - 1:56:02 PM
Long-term archiving on: : Monday, September 17, 2012 - 10:45:18 AM

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  • HAL Id : tel-00011366, version 1

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Céline Gautier. Développement de la technique de la double impulsion laser pour améliorer les performances analytiques de l'Ablation Laser couplée à la Spectrométrie d'Emission Optique (AL/SEO) sur solides. Applications nucléaires et géologiques.. Autre. Université Henri Poincaré - Nancy I, 2005. Français. ⟨tel-00011366⟩

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