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Article Dans Une Revue Applied Physics Letters Année : 2013

Indirect laser-induced breakdown of transparent thin gel layer for sensitive trace element detection

Résumé

Optical emissions from major and trace elements embodied in a transparent gel prepared from cooking oil were detected when the gel was spread in thin film on a metallic substrate and a plasma was induced on the substrate surface using nanosecond infrared pulsed laser. Such emissions are due to indirect breakdown of the coating layer. The generated plasma, a mixture of substances from the substrate, the layer, and the ambient gas, was characterized using emission spectroscopy. Temperature higher than 15 000 K determined in the plasma allows considering sensitive detection of trace elements in liquids, gels, biological samples, or thin films.
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Dates et versions

hal-03014010 , version 1 (19-11-2020)

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Junshan Xiu, Xueshi Bai Bai, Erwan Negre, Vincent Motto-Ros, Jin Yu. Indirect laser-induced breakdown of transparent thin gel layer for sensitive trace element detection. Applied Physics Letters, 2013, 102 (24), pp.244101. ⟨10.1063/1.4811245⟩. ⟨hal-03014010⟩
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