Determination of plasma ignition threshold fluence during femtosecond single-shot laser ablation on metallic samples detected by optical emission spectroscopy

The minimum laser fluence needed for plasma ignition on a sample during single-shot femtosecond laser ablation has been determined for a set of metals and alloys. Threshold fluence values ranged between 4 and 9 J cm −2 for ablation craters with a diameter of 40 μm. The craters exhibited similar size...

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Veröffentlicht in:Journal of analytical atomic spectrometry 2015-01, Vol.3 (8), p.173-1735
Hauptverfasser: López-Claros, Marina, Vadillo, José M, Laserna, J. Javier
Format: Artikel
Sprache:eng
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Zusammenfassung:The minimum laser fluence needed for plasma ignition on a sample during single-shot femtosecond laser ablation has been determined for a set of metals and alloys. Threshold fluence values ranged between 4 and 9 J cm −2 for ablation craters with a diameter of 40 μm. The craters exhibited similar size and shape regardless of the sample type, energy range (for energies per pulse
ISSN:0267-9477
1364-5544
DOI:10.1039/c5ja00076a