Spectroscopic Analysis of CdO: Fe Plasma Generated by Nd: YAG Laser

Tamara S.  Hussein; Ala F.  Ahmed; Kadhim A.  Aadim

doi:10.24996/ijs.2022.63.2.12

Authors

Tamara S. Hussein Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq
Ala F. Ahmed Department of Astronomy and Space, College of Science, University of Baghdad, Baghdad, Iraq
Kadhim A. Aadim Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq

DOI:

https://doi.org/10.24996/ijs.2022.63.2.12

Keywords:

plasma parameters, optical emission spectrum, Laser-induced plasma spectroscopy

Abstract

In this work, the optical emission spectrum technique was used to analyze the optical emission spectrum of (CdO: Fe) plasma produced by laser Nd: YAG with a wavelength of (532) nm, a period of 10 ns, and a focal length of 10 cm in the energy range of (200-500) mJ. The electron temperature (T_e) was determined using the method of line intensities ratio. Using the Saha-Boltzmann equation, the electron density (n_e) was determined. Other plasma parameters such as plasma frequency (f_p), Debye length (λ_D) and Debye number (N_D) were also measured. The CdO: Fe (at a mixing ratio of X= 0.5.) plasma spectrum was observed for different energies. As a function of the laser energies, the changes in electron temperature and densities were studied. The value of the electron temperature, at X=0.5, was (0.420 - 1.160) eV for laser energy (200-500) mJ, respectively.