Time-resolved optical emission spectrometry of Q-switched Nd:YAG laser-induced plasmas from copper targets in air at atmospheric pressure

Spark discharge assisted laser induced breakdown spectroscopy

“…Table 1 includes the spectroscopic parameters for Cu atomic emission lines, obtained from Refs. [43] and [44]. Fig.…”

“…7 shows that the excitation temperature exhibits a fast decay from¨9500 tö 6000 K in both modes of operation at 10 and 60 As after the laser pulse for both LIBS and SD-LIBS, respectively. The decay in plasma temperature is due to expansion and cooling of Table 1 Copper line parameters used for the determination of plasma electron temperature [43,44] Wavelength (nm) E (cm À 1 ) the produced plasma with time. The deposition of energy stored in the capacitor, in the case of SD-LIBS, gives rise to the creation of plasma that lasts for a longer time and has a larger volume compared to the LIBS plasma.…”

Investigation of the Line-Broadening Mechanism for Laser-Induced Copper Plasma by Time-Resolved Laser-Induced Breakdown Spectroscopy

“…No explanation of the narrow bandwidth for this line is mentioned. Nemet and Kozma reported the broadening of transition lines as pressure, Stark, and Doppler broadening (12). But pressure and Doppler broadening should not be so much different among transition lines as is the present case for copper plasma.…”

“…Autin et al reported that self-absorption is prominent in nitrogen and the atmosphere but not in helium for copper plasma (11). Recently, Nemet and Kozma reported the line broadening of the Cu emission line and attributed this to pressure, Doppler, and stark broadening (12,13).…”

Application of Laser-Induced Breakdown Spectroscopy to Real-Time Elemental Monitoring of Iron and Steel Making Processes

“…The analytical instrument and the calibration methods have been studied and developed extensively. [98][99][100][101][102][103][104] In iron and steel making processes, the slags are as important as the products. Sturm et al 105) analyzed the solidified samples taken from the liquid slag layer in a vacuum degasser station of a steel plant using LIBS.…”