作者
Atif Hussain, Haroon Asghar, Tehreem Iqbal, Mavra Ishfaq, Rana Muhammad Shahbaz, Qandeel Riaz
发表日期
2022/2/1
期刊
Optik
卷号
251
页码范围
168220
出版商
Urban & Fischer
简介
In this report, an impact of applied-magnetic field on laser induced breakdown spectroscopy (LIBS) emission with different air pressures and several time delays was explored by analyzing the solid aluminum (Al) sample. A Neodymium-doped yttrium aluminum garnet (Nd:YAG) laser at its basic wavelength (1064 nm) was utilized to generate the plasma and its optical emission was recorded with the help of an optical emission spectroscopy (OES) technique. A notable improvement was observed primarily at low pressure and shorter delay time for Al atomic lines due to the effect of magnetic field (0.5 T). For the air pressure of 100 Pa and delay time of 100 ns, the signal enhancement of approximately 2-fold was obtained for Al (I) 396.1 nm spectral line. The signal enhancement due to the magnetic confinement was attributed to an increase in electron-impact excitation rate and recombination processes. The …
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