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Vol. 25 No. 4 (2013): Vol 25 Issue 4

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Measurement of Electron Density and Temperature of Laser-Induced Copper Plasma

https://doi.org/10.14233/ajchem.2013.13392
M.A. Naeem
Department of Physics, University of Agriculture, Faisalabad-38040, Pakistan
M. Iqbal
Department of Chemistry and Biochemistry, University of Agriculture, Faisalabad-38040, Pakistan
N. Amin
Department of Physics, University of Agriculture, Faisalabad-38040, Pakistan
M. Musadiq
Department of Physics, University of Agriculture, Faisalabad-38040, Pakistan
Y. Jamil
Department of Physics, University of Agriculture, Faisalabad-38040, Pakistan
F. Cecil
Department of Physics, University of Agriculture, Faisalabad-38040, Pakistan

Asian Journal of Chemistry, Vol. 25 No. 4 (2013): Vol 25 Issue 4

Abstract

In present study, the Nd:YAG laser generated copper plasma has been evaluated as a function of distance (0.5-5 mm) at 17.6 and 88.6 mJ. The excitation temperature was determined using Boltzmann plot method of the transitions (4p P3/2 ® 3d 4s 2D5/2) at 510.34 nm (4d 2D3/2 ® 4p 2P1/2) at 515.12 nm, (4d 2D5/2 ® 4p 2P3/2) at 521.64, whereas electron number density was measured by Stark Broadening method. The spatial behaviour of the electron temperature and electron number density was measured at ambient air pressures. The electron temperature was found in the ranges from 16790-9090 K, while electron number density was 1.53 × 1017-1.85 × 1017 and 1.35 × 1017-1.87 × 1017 cm-3, respectively for 17.6 and 88.6 mJ energy. The relationship of electron number density and electron temperature found directly related to laser irradiation, while they were inverse to the distance form the target surface.

Keywords

Laser-induced plasma Plasma spectroscopy Electron temperature Electron number density Laser-induced plasma spectroscopy
Naeem, M., Iqbal, M., Amin, N., Musadiq, M., Jamil, Y., & Cecil, F. (2012). Measurement of Electron Density and Temperature of Laser-Induced Copper Plasma. Asian Journal of Chemistry, 25(4), 2192–2198. https://doi.org/10.14233/ajchem.2013.13392
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