Open AccessEnhancement of Laser-induced Breakdown Spectroscopy (LIBS) Signal Subject to the Magnetic Confinement and Dual Pulses-=SUP=-*-=/SUP=-
Author(s) -
Atif Hussain,
Xun Gao,
Haroon Asghar,
Muhammad Azam,
Zeesha Nawaz
Publication year - 2021
Publication title -
optika i spektroskopiâ
Language(s) - English
Resource type - Journals
eISSN - 2782-6694
pISSN - 0030-4034
DOI - 10.21883/os.2021.04.50788.1027-20
Subject(s) - laser induced breakdown spectroscopy , materials science , plasma , spectroscopy , magnetic field , emission spectrum , spectral line , laser , analytical chemistry (journal) , nuclear magnetic resonance , optics , chemistry , physics , chromatography , quantum mechanics , astronomy
In this work, a comparative study for the laser-induced breakdown spectroscopy (LIBS) of aluminium (Al) target has been performed by using the two kinds of enhancement techniques namely, magnetic confinement and double pulse-LIBS (DP-LIBS). Firstly, the signal enhancement of Al plasma by combining the LIBS with an external magnetic field was exposed. Secondly, the signal enhancement by configuring the dual-pulses action in LIBS was performed. We found that the optical emission lines and plasma parameters (electron temperature and density) showed significant enhancement in the presence of magnetic field and DP-LIBS. During the magnetic confinement, the maximum enhancement factors of about 6 and 8 were achieved for the spectral line Mg (II) 279.5 nm and Al (II) 280.1 nm, respectively. An enhancement factor was reached up to 12-folds for the various spectral lines in DP-LIBS. Our results have significance in improving the LIBS sensitivity. Keywords: LIBS, spectral lines, magnetic confinement, Boltzmann, dual pulses