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A profile-fitting method to determine the metastable and resonant densities in an atmospheric pressure argon plasma jet

Qing Xiong UGent, Anton Nikiforov UGent, Xinpei Lu and Christophe Leys UGent (2012) 18th international Colloquium on Plasma Processes, Abstracts.
abstract
A simple profile-fitting method is applied to determine the concentrations of metastable and resonant species in a cold atmospheric pressure argon plasma jet. This method is based on the analysis of the effect of self-absorption broadening on the profiles of spectral lines emitted from plasma. The spectral lines which correspond to transitions to metastable and resonant lower states were measured with high resolution optical emission spectroscopy (OES). Fitting the measured line contours yields line-integrated densities of metastable Ar(1s5) and Ar(1s3) of 1.2 × 1015 m-2 and 5.0 × 1014 m-2, respectively. For resonant species, it is difficult to obtain a precise density estimation through the profile-fitting method because of the much broader intrinsic resonant lines due to resonance broadening, and the fact that the densities of resonant atoms are not high enough to induce an obvious self-absorption effect on the spectral lines. The applicability of the profile-fitting routine is sensitive to the line-center optical thickness of emission lines, which are mainly determined by the lower states densities in the discharge, and to the intrinsic line profiles of corresponding transitions.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
in
18th international Colloquium on Plasma Processes, Abstracts
conference name
18th International Colloquium on Plasma Processes (CIP - 2011)
conference location
Nantes, France
conference start
2011-07-04
conference end
2011-07-08
language
English
UGent publication?
yes
classification
C3
id
1270279
handle
http://hdl.handle.net/1854/LU-1270279
date created
2011-06-21 14:33:03
date last changed
2012-05-11 14:25:20
@inproceedings{1270279,
  abstract     = {A simple profile-fitting method is applied to determine the concentrations of metastable and resonant species in a cold atmospheric pressure argon plasma jet. This method is based on the analysis of the effect of self-absorption broadening on the profiles of spectral lines emitted from plasma. The spectral lines which correspond to transitions to metastable and resonant lower states were measured with high resolution optical emission spectroscopy (OES). Fitting the measured line contours yields line-integrated densities of metastable Ar(1s5) and Ar(1s3) of 1.2 {\texttimes} 1015 m-2 and 5.0 {\texttimes} 1014 m-2, respectively. For resonant species, it is difficult to obtain a precise density estimation through the profile-fitting method because of the much broader intrinsic resonant lines due to resonance broadening, and the fact that the densities of resonant atoms are not high enough to induce an obvious self-absorption effect on the spectral lines. The applicability of the profile-fitting routine is sensitive to the line-center optical thickness of emission lines, which are mainly determined by the lower states densities in the discharge, and to the intrinsic line profiles of corresponding transitions.},
  author       = {Xiong, Qing and Nikiforov, Anton and Lu, Xinpei and Leys, Christophe},
  booktitle    = {18th international Colloquium on Plasma Processes, Abstracts},
  language     = {eng},
  location     = {Nantes, France},
  title        = {A profile-fitting method to determine the metastable and resonant densities in an atmospheric pressure argon plasma jet},
  year         = {2012},
}

Chicago
Xiong, Qing, Anton Nikiforov, Xinpei Lu, and Christophe Leys. 2012. “A Profile-fitting Method to Determine the Metastable and Resonant Densities in an Atmospheric Pressure Argon Plasma Jet.” In 18th International Colloquium on Plasma Processes, Abstracts.
APA
Xiong, Q., Nikiforov, A., Lu, X., & Leys, C. (2012). A profile-fitting method to determine the metastable and resonant densities in an atmospheric pressure argon plasma jet. 18th international Colloquium on Plasma Processes, Abstracts. Presented at the 18th International Colloquium on Plasma Processes (CIP - 2011).
Vancouver
1.
Xiong Q, Nikiforov A, Lu X, Leys C. A profile-fitting method to determine the metastable and resonant densities in an atmospheric pressure argon plasma jet. 18th international Colloquium on Plasma Processes, Abstracts. 2012.
MLA
Xiong, Qing, Anton Nikiforov, Xinpei Lu, et al. “A Profile-fitting Method to Determine the Metastable and Resonant Densities in an Atmospheric Pressure Argon Plasma Jet.” 18th International Colloquium on Plasma Processes, Abstracts. 2012. Print.