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<p>This study investigates the influences of varying laser energies on the fundamental properties of the plasma state include electron density (n<sub>e</sub>), electron temperature (T<sub>e</sub>), plasma frequency (fp), and Debye length (λ<sub>D</sub>), among others. This study experimentally generates plasma using Laser-Induced Breakdown Spectroscopy (LIBS). Utilize optical emission spectroscopy (OES) to assess plasma characteristics. Plasma can be generated from solid zinc when a pulsed laser is applied to the foil in ambient conditions at varying energy of 100, 180, and 220&#xa0;mJ. The spectrum is documented for the zinc laser plasma Nd: YAG at a wavelength of 1064&#xa0;nm, a frequency of 10&#xa0;Hz, and a focal length of 10&#xa0;cm. The plasma Boltzmann plot approach yields upper and lower values of T<sub>e</sub> at (1.47–2.04) eV, while Stark broadening provides upper and lower values of n<sub>e</sub> at (11.30–12.1)*10<sup>17</sup> cm<sup>− 3</sup>.</p>

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Influence of laser energy on optical emission spectroscopy characteristics for zinc plasma parameters

  • 期刊论文

  • 发表日期：

    2025年1月29日

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  • Roonak Abdul Salam A. Alkareem,
  • Baida M. Ahmed

摘要

This study investigates the influences of varying laser energies on the fundamental properties of the plasma state include electron density (ne), electron temperature (Te), plasma frequency (fp), and Debye length (λD), among others. This study experimentally generates plasma using Laser-Induced Breakdown Spectroscopy (LIBS). Utilize optical emission spectroscopy (OES) to assess plasma characteristics. Plasma can be generated from solid zinc when a pulsed laser is applied to the foil in ambient conditions at varying energy of 100, 180, and 220 mJ. The spectrum is documented for the zinc laser plasma Nd: YAG at a wavelength of 1064 nm, a frequency of 10 Hz, and a focal length of 10 cm. The plasma Boltzmann plot approach yields upper and lower values of Te at (1.47–2.04) eV, while Stark broadening provides upper and lower values of ne at (11.30–12.1)*1017 cm− 3.