Spectroscopic analysis of coal plasma emission produced by laser ablation/Análisis espectroscópico de un plasma de carbón producido por ablación láser

An analysis of plasma produced by laser ablation using 1,064 nm of laser radiation from a Q-switched Nd:YAG on coal mineral samples under air ambient, was performed. The emission of molecular band systems such as C^sub 2^ Swan System (d^sup 3^ Π^sub g^ [arrow right] a^sup 3^ Π^sub u^), the First Neg...

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Bibliographic Details
Published in:Revista Facultad de Ingeniería 2016-03 (78), p.69-69
Main Authors: Vera-Londoño, Liliana Patricia, Pérez-Taborda, Jaime Andrés, Riascos-Landázuri, Henry
Format: Article
Language:eng ; spa
Subjects:
Astrophysics
Band spectra
Carbon
Coal
Electron density
Electron temperature
Emission analysis
Emission spectroscopy
Laser ablation
Lasers
Plasma
Spectrum analysis
Studies
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Summary:An analysis of plasma produced by laser ablation using 1,064 nm of laser radiation from a Q-switched Nd:YAG on coal mineral samples under air ambient, was performed. The emission of molecular band systems such as C^sub 2^ Swan System (d^sup 3^ Π^sub g^ [arrow right] a^sup 3^ Π^sub u^), the First Negative System N^sub 2^ (Band head at 501.53 nm) and different emission lines were investigated using the optical emission spectroscopy technique. The C^sub 2^ molecular spectra (Swan band) were analyzed to determine vibrational temperature (0.62 eV). The density and electron temperature of the plasma have been evaluated using Stark broadening and the intensity of the nitrogen emission lines (N II). Values of 1.2 eV of electron temperature and 1.82×10^sup 19^ cm^sup -3^ of electron density were found.
ISSN:0120-6230
2422-2844
DOI:10.17533/udea.redin.n78a09