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Article Dans Une Revue Optics Express Année : 2014

Flame-enhanced laser-induced breakdown spectroscopy

Résumé

Flame-enhanced laser-induced breakdown spectroscopy (LIBS) was investigated to improve the sensitivity of LIBS. It was realized by generating laser-induced plasmas in the blue outer envelope of a neutral oxy-acetylene flame. Fast imaging and temporally resolved spectroscopy of the plasmas were carried out. Enhanced intensity of up to 4 times and narrowed full width at half maximum (FWHM) down to 60% for emission lines were observed. Electron temperatures and densities were calculated to investigate the flame effects on plasma evolution. These calculated electron temperatures and densities showed that high-temperature and low-density plasmas were achieved before 4 µs in the flame environment, which has the potential to improve LIBS sensitivity and spectral resolution.

Domaines

Matériaux
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Dates et versions

hal-00974402 , version 1 (18-04-2024)

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Paternité - Pas d'utilisation commerciale - Pas de modification

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L. Liu, S. Li, N. He X., X. Huang, C. F. Zhang, et al.. Flame-enhanced laser-induced breakdown spectroscopy. Optics Express, 2014, 22 (7), pp.7686-7693. ⟨10.1364/OE.22.007686⟩. ⟨hal-00974402⟩
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