Dual-pulse laser-induced breakdown spectroscopy with combinations of femtosecond and nanosecond laser pulses.
Nanosecond and femtosecond laser pulses were combined in an orthogonal preablation spark dual-pulse laser-induced breakdown spectroscopy (LIBS) configuration. Even without full optimization of interpulse alignment, ablation focus, large signal, signal-to-noise ratio, and signal-to-background ratio enhancements were observed for both copper and aluminum targets. Despite the preliminary nature of this study, these results have significant implications in the attempt to explain the sources of dual-pulse LIBS enhancements.
Scaffidi
Jon
J
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA.
Pender
Jack
J
Pearman
William
W
Goode
Scott R
SR
Colston
Bill W
BW
Carter
J Chance
JC
Angel
S Michael
SM