Combination of RF-plasma jet and Laser-induced plasma for breakdown spectroscopy analysis of complex materials

Application of laser-induced breakdown spectroscopy to the analysis of secondary materials in industrial production

“…A secondary excitation of the laser-induced plasma can enhance the optical signals and improve the detection sensitivity. Techniques employed for secondary excitation in LIBS include double laser pulses (St-Onge et al , 1998;Babushok et al , 2006;Ctvrtn í kova et al , 2008;Windom and Hahn, 2009;Viskup et al , 2010;Heilbrunner et al , 2012), electric spark discharges (Chen et al , 2010;Kexue et al , 2010), and radiofrequency (Bian et al , 2005;Deng et al , 2010;Pedarnig et al , 2011) and microwave (Ikeda et al , 2010;Liu et al , 2010) radiation. …”

Development of double-pulse lasers ablation system for generating gold ion source under applying an electric field

“…The increasing in the current signal using crossed-beam DP-excitation is due to an increase in ablation efficiency and longer plasma life time. Some research groups have been applied an electric discharge beside the double-pulse laser induced breakdown spectroscopy (DP-LIBS) [40][41][42][43][44] to enhance the LIBS signal intensity. At high laser intensities, the electron current signal approximately saturates, which may be due to space charge effects and plasma shielding of the laser pulse.…”

Atomic spectrometry update. Industrial analysis: metals, chemicals and advanced materials

“…Of these, many are more than just simple applications, but instead attempt to improve the performance of the technique or apply a mechanistic approach. 250 The authors used short pulses from a 193 nm laser to form the laser induced plasma in the first instance and then the plasma jet to further excite it. 248 Using nylon 12 and poly(vinyl alcohol-co-ethylene) as test polymers, the LIBS signal was found to be enhanced significantly when the irradiation wavelength corresponded to hydride stretch fundamental transitions.…”

“…250 The method reported the enhancement of the LIBS signal by using an RF-plasma jet to further excite the laser induced plasma. One, by Pedarnig and co-workers, has already been discussed in detail in section 3.1.2 because it also reported the analysis of polymeric materials.…”