LIBS Info: Element Analysis

Title Authors Material Detector Spectrometer Software
Fs/ns-dual-pulse orthogonal geometry plasma plume reheating for copper-based-alloys A. Santagata, A. De Bonis, P. Villani, R. Teghil, G.P. Parisi Brass Acton Spectra Pro Acton Spectra Pro
Laser: Nd:Glass
Gate Delay: 0.100us
Gate Width: 0.100us
Femto second Nd:Glass laser and Nano-second Nd:YAG laser used in orthogonal double pulse LIBS configuration (fs beam at 45degrees to sample surface, ns beam focused parallel to the surface). Nd:YAG laser used 45mJ pulses at 180us delay. Gate delays of 0.1-1000us, Gate Widths 0.1-25us used. When 0.75mJ fs pulse used, the best delay to the ns pulse was 10us, when 3mJ fs pulse used, the the optimum delay to the ns pulse was 8us. Calibration curves showed less saturation using the DP configuration.
Element Detection Limit (ppm) Wavelength (nm) Other Wavelengths (nm) Calibration Method Calibration Range (ppm) Notes
Zn 360.0000 (Stated) 472.2100 N/A Univariate -10.0000--10.0000 DP LIBS (with fs first pulse)
Zn 4500.0000 (Stated) 472.2100 N/A Univariate -10.0000--10.0000 Single Pulse LIBS
Cu 2400.0000 (Stated) 465.1100 N/A Univariate -10.0000--10.0000 DP LIBS (fs first pulse, ns 2nd pulse)
Cu 23000.0000 (Stated) 465.1100 N/A Univariate -10.0000--10.0000 Single Pulse (Normal!) LIBS

Element RMSE (ppm) Wavelength (nm) Calibration Method Notes