Temporal characterization of femtosecond laser pulses induced plasma for spectrochemical analysis of aluminum alloys

By B. L. Drogoff, J. Margot, M. Chaker, M. Sabsabi, O. Barthélemy, T. Johnston, S. Laville, F. Vidal, Y. V. Kaenel. 2001

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Laser-Induced Breakdown Spectroscopy: Fundamentals, Applications, and Challenges (2012, background): “For pulses longer than about 5ps, the laser-plasma interactions result in plasma heating and the plasma temperature increases with pulse duration [17].”
Measurement of electron density utilizing the Hα-line from laser produced plasma in air (2006, methodology): “correction of the emitted spectral lines against optical thickness [9,19–23], improvement of the limit of detection [24], effect of ambient gas pressure on laser ablation process [1,25,26] and finally, an enhancement of the LIBS sensitivity through different suggested schemes, e.g. double pulse LIBS”
Improved LIBS limit of detection of Be, Mg, Si, Mn, Fe and Cu in aluminum alloy samples using a portable Echelle spectrometer with ICCD camera (2008, result): “5 [25] 8.”