Spectroscopic Diagnosis of the CdO:CoO Plasma Produced by Nd:YAG Laser

Iraqi Journal of Science

2022

In this work, the effect of laser energy on the properties of a calcium plasma generated by a Q-switched Nd: YAG laser at the fundamental wavelength was studied using spectroscopy. The Boltzmann plot and Stark broadening method were used to measure the main plasma parameters (electron temperature and electron density). The electron temperature ranged ( 0.169 -0.172 ) eV, the electron density ranged ( 2.10 – 2.63 ) for laser energy range of ( 400 – 700) mJ. Other basic plasma properties were also measured, including the Debye length, the number of particles in the Debye sphere, and the plasma frequency. Laser energy affects all plasma parameters, according to our results.

Section: Determination and Characterization Of Other Plasma Parameterssupporting

confidence: 89%

“…Figure 5: Difference between f p and λ D versus laser power for calcium at different energy values.Debye number decreases with increasing laser energy and N D showed similar behavior to Debye length as a function of laser energy as in Figure6, and these results are in agreement with Maryam and Kadhim (2021)[13].…”

supporting

confidence: 89%

Characteristics of Calcium Plasma Parameters by Laser-Induced Breakdown Spectroscopy Technique

Hachim

Iraqi Journal of Science

2022

“…Figure6shows the relationship between Debye length (λ D ) and laser intensity; as the laser intensity increased λ D became shorter because more light was absorbed in the material. This result agrees with that ofAadim et al (2021) [13].…”

supporting

confidence: 92%

Spectroscopy Diagnostic of Laser Intensity Effect on Zn Plasma Parameters Generated by Nd: YAG Laser

Mohammed

Ahmed

2022

eijs

Self Cite

The creation and characterization of laser-generated plasma are affected by laser irradiance, representing significant phenomena in many applications. The present work studied the spectroscopy diagnostic of laser irradiance effect on Zn plasma features created in the air by a Q-switched Nd: YAG laser at the fundamental wavelength (1064nm). The major plasma parameters (electron temperature and electron density) have been measured using the Boltzmann plot and the Stark broadening methods. The value of electrons temperature ranged from 6138–6067 K, and the electron density in the range of 1.4×1018 to 2×1018 cm-3, for laser irradiance range from 2.1 to 4.8×108 (W/cm2). The McWhirter criterion for preserving a local thermodynamic equilibrium (LTE) condition is confirmed in this study. Furthermore, other fundamental plasma parameters, such as Debye length (λD), number of particles in Debye sphere (ND), and plasma frequency (ωp), were measured. We found that all plasma parameters are affected by laser intensity.

“…in which 𝜔 is the electron effect parameter and the rather broadened full-width spectrum at most height (FWMH) (nm). Once the electron temperature (Te) (eV) and electron quantity density (ne) (cm-3) are calculated, the Debye length (𝜆𝐷) (cm) may be calculated the use of the subsequent formula (Maryam, Shehab & Aadim, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…The following equation can also be used to calculate the plasma frequency. (Maryam, Shehab & Aadim, 2021;Madyan et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Study of spectroscopic analysis performed of laser produced Sn and Sn:Cr plasma

Ahmed

2022

ijhs

Self Cite

In this study, the LIBS technique was used to generate plasma from the Sn and Sn:Cr surfaces of these nanomaterials and to quantify the spectral emission of tin and chromium-containing tin. Nd-YAG laser has a wavelength of 1064 nm and a frequency of 6 Hz. After computing the plasma parameters, it was determined that the electron temperature is plasma Sn(1.286–1.819)ev and Sn: Cr (1.661-2.11505922)ev. The Sn(1.65-2.40) 108 cm -3 plasma electron density was also detected. Plasma Sn:Cr (2.85-3.39) 108cm-3 Additionally, calculations were made for plasma properties such plasma frequency, Debye length, and Debye number. At atmospheric pressure, the spectrum range of laser-induced plasma emission (200-1100 nm) was determined.