LIBS Info: Element Analysis

Title Authors Material Detector Spectrometer Software
Parametric study of a fiber-optic laser-induced breakdown spectroscopy probe for analysis of aluminum alloys Awadhesh K. Rai, Hansheng Zhang, Fang Y. Yueh, Jagdish P. Singh, Arel Weisburg Aluminium Alloy Princeton Instruments ICCD Max Jobin Yvon HR460
Laser: Nd:YAG
532.0000nm
20.0000mJ
10.000Hz
Gate Delay: 2.000us
Gate Width: 2.000us
A key outcome of this paper is the demonstration of the delivery of the laser pulse and the collected spectra by the same 3m length of optical fibre. The fibre has a 1.0mm core and pulses up to 20mJ were delivered using this method with about 88% end to end efficiency.
Element Detection Limit (ppm) Wavelength (nm) Other Wavelengths (nm) Calibration Method Calibration Range (ppm) Notes
Mg 7.0000 (Calibration Curve Slope) 383.8290 N/A Univariate 900.0000-24800.0000 Fibre optic used to deliver laser to sample and collect spectra
Mg 7.0000 (Calibration Curve Slope) 383.8290 N/A Univariate 900.0000-24800.0000 Fibre optic used to deliver laser to sample and collect spectra
Cr 3.0000 (Calibration Curve Slope) 359.3490 N/A Univariate 11.0000-2000.0000 Fibre optic used to deliver laser to sample and collect spectra
Mn 90.0000 (Calibration Curve Slope) 404.1360 N/A Univariate 100.0000-4800.0000 Fibre optic used to deliver laser to sample and collect spectra
Mn 10.0000 (Calibration Curve Slope) 404.1360 N/A Univariate 100.0000-4800.0000
Zn 38.0000 (Calibration Curve Slope) 330.2590 N/A Univariate 11.0000-2000.0000 Fibre optic used to deliver laser to sample and collect spectra
Zn 0.2900 (Calibration Curve Slope) 330.2590 N/A Univariate 11.0000-2000.0000
Fe 30.0000 (Calibration Curve Slope) 344.0606 N/A Univariate 800.0000-4800.0000 Fibre optic used to deliver laser to sample and collect spectra
Fe 15.0000 (Calibration Curve Slope) 344.0606 N/A Univariate 800.0000-4800.0000
Cu 56.0000 (Calibration Curve Slope) 324.7000 N/A Univariate 3100.0000-53800.0000 Fibre optic used to deliver laser to sample and collect spectra
Cu 160.0000 (Calibration Curve Slope) 324.7000 N/A Univariate 3100.0000-53800.0000 Surprisingly worse that when the Fibre Optic is used due to self-absorption.


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