I found three transition lines of magnesium fluoride during LIBS process at 0.5 mm axial distance. Can any one tell me which elements are presents in these transition lines? Screenshot of graph is attached here.
I would suggest the 610nm and 670nm peaks are from Lithium impurities. [See https://physics.nist.gov/cgi-bin/ASD/lines1.pl?composition=Li%3A100&mytext%5B%5D=Li&myperc%5B%5D=100&spectra=Li0-2&low_wl=500&upp_wl=700&show_av=2&unit=1&resolution=1000&temp=1&eden=1e17&libs=1]
Do you have a frequency doubled [greed] Nd:YAG laser in your system? If so, this could explain the 532nm peak.