Measurements and Calculations of  parametrs of Zinc Oxide Plasma  Produced by Laser induced Breakdown Spectroscopy

Fatima K.  Hammoud; Kadhim A.  Aadim

doi:10.24996/ijs.2022.63.4.14

Authors

Fatima K. Hammoud Department of physics, 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.2022.63.4.14

Keywords:

Optical Emission Spectroscopy (OES), Laser-Induced Plasma Spectroscopy (LIPS), Zinc oxide (ZnO), Nd: YAG laser

Abstract

In this work, the optical emission characteristics of the ZnO plasma were presented. The plasma parameters: electron temperature (T_e), electron density( n_e), plasma frequency (f_p) and Debye length (λ_D) were studied with a spectrometer that collects the spectrum ZnO plasma in air produced by Nd:YAG laser,(λ=1064 nm) at ratio X=0.5 in the range of energy of (700-1000 mJ), duration (10 ns). The Boltzmann plot methodwas employed to calculate the electron temperature (T_e), while the Stark broadening was used to determine the electron density (n_e), Debye duration (λ_D), and plasma frequency (f_p). T_e, ne, and f_p were found to increase with the increase of laser energy.In contrast, (λ_D) decreased with laser energy increase. The resulting electron temperature calculation value was (1.908-2.084) eV.