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Absorption spectroscopy measurements of argon metastable and resonant atom density in atmospheric pressure Ar-He surface-wave plasmas using a low pressure lamp
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10.1063/1.3671408
/content/aip/journal/jap/111/2/10.1063/1.3671408
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/2/10.1063/1.3671408

Figures

Image of FIG. 1.
FIG. 1.

Absorption curves calculated for the 763.51 nm line using the data in Table II .

Image of FIG. 2.
FIG. 2.

Experimental setup.

Image of FIG. 3.
FIG. 3.

(Color online) Experimental values of the global absorption coefficient for some of the lines considered in the present study.

Image of FIG. 4.
FIG. 4.

(Color online) Metastable ((a) 3P2 and (c) 3P0) and resonant ((b)3P1) level density calculated for the Ar lines considered in this study. Experimental errors (not shown) in the determination of each point range from 15% to 30%.

Image of FIG. 5.
FIG. 5.

(Color online) Comparison between the 3P2 metastable level and electron densities for different positions along the discharge axis.

Image of FIG. 6.
FIG. 6.

(Color online) Metastable (3P2 and 3P0) and resonant (3P1) level densities calculated as averaged values of the results obtained for single lines.

Image of FIG. 7.
FIG. 7.

(Color online) Comparison between the 3P2 metastable level density and the electron densities with He content in the discharge.

Image of FIG. 8.
FIG. 8.

(Color online) Comparison between the 3P2 metastable level density and that obtained from a simplified model neglecting and considering dissociative recombination.

Tables

Generic image for table
Table I.

Characteristic parameters of the spectral lines considered in the present study.

Generic image for table
Table II.

Characteristic plasma parameters considered in the present study (taken from Refs. 7 and 20 ).

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/content/aip/journal/jap/111/2/10.1063/1.3671408
2012-01-19
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Absorption spectroscopy measurements of argon metastable and resonant atom density in atmospheric pressure Ar-He surface-wave plasmas using a low pressure lamp
http://aip.metastore.ingenta.com/content/aip/journal/jap/111/2/10.1063/1.3671408
10.1063/1.3671408
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