Open AccessInfluence of Gas Type on the Laser Produced Graphite Plasma
Author(s) -
H Adil A Alazawi,
Q Adnan Abass
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2114/1/012030
Subject(s) - plasma , atomic physics , electron density , argon , emission spectrum , laser , electron temperature , ionization , debye length , electron , materials science , spectroscopy , plasma diagnostics , chemistry , ion , spectral line , optics , physics , quantum mechanics , astronomy , organic chemistry
Plasma graphite creation by a pulsed Nd: YAG laser with a wavelength of 1064nm to a target in vacuum in two cases (Argon, Air) with varied gas pressures and the resulting spectrum was diagnosed using optical emission spectroscopy for the wavelength range 320-740nm electron temperature T e and electron density n e Debye length λ D , and plasma frequency f p were calculated. The results showed that increasing the pulse laser energy causes all plasma parameters of both gases under study to increase, as well as a rise in the emission line intensity. The ionization energy of target atoms determines the presence of an element’s atomic and ionic emission lines in the emission spectrum, increase in pressure decreases the electron temperature, and Debye length, also plasma frequency and electron density increase, as it has been proven that the type of gas does not affect the properties of plasma.