Spectroscopic Diagnostics of Plasma parameter in Laser Induced Plasma using PbO Lines
DOI:
https://doi.org/10.25130/tjps.v24i2.354Keywords:
spectroscopy; Boltzmann plot; plasma parametersAbstract
The optical emission spectrum of produced plasma was studied using pulse laser, where the effect of laser energy at a wavelength of 1064nm was studied on lead oxide that produced by optical emission spectroscopy at different laser energy from 500 to 900 mJ. It was found that the intensity for Pb I and Pb II lines increase with increasing laser energy, but with different ratio, as a result increasing the excitation rate with increasing the number of falling photons. The wave length was recorded at highest laser Energy produced from Pb II which was equal to 666.02 nm. It can be seen that The height of peaks increase with increasing laser energy due to the effect of increasing the Electrical field induced by increasing Electrons density and the temperature of electron (Te) and electron density (ne) increase from 1.222×1018 cm-3 to 1.444×1018 cm-3 with increasing laser energy from 500 to 900 mJ respectively as a result of increasing number of falling photons which lead to increase in the electron density.
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