Paper
27 November 2007 Argon (2P→1S) spectral lines measurement in dielectric barrier discharge (DBD) by optical emission spectroscopy
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Proceedings Volume 6723, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 67235J (2007) https://doi.org/10.1117/12.783784
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China
Abstract
The variations of the intensity of argon (2P→1S) spectral lines with various gas mixing ratios in dielectric barrier discharge (DBD) in air/Ar and N2/Ar admixtures are studied. The relative intensity of Ar I I750.39nm/I763.51nm as a function of experiment conditions (pressure, applied voltage and frequency) in Ar discharge is also measured. In air/Ar and N2/Ar admixtures, it is observed that the higher levels of N2 molecules have quenching selectivity for Ar (2P→1S) spectral lines, and the relative intensity of Ar I I750.39nm/I763.51nm increases with increasing air or N2 concentration in two admixtures, respectively. Both Ar (2P→1S)spectral lines and the relative intensity of Ar I I750.39nm/I763.51nm in N2/Ar admixture are higher than that in air/Ar admixture under the same air and N2 concentration in two admixtures. The relative intensity of Ar I I750.39nm/I763.51nm increases from 0.81 to 1.73 when the concentration of air changes from 10% to 73%, but the relative intensity changes from 1.03 to 3.51 when the concentration of N2 increases from 10% to 73% in N2/Ar admixture at a applied voltage of 10kV, a frequency of 26kHz and an atmosphere pressure. Moreover, in Ar discharge, the results demonstrate that the pressure has great effect on the relative intensity of Ar I I750.39nm/I763.51nm, which decreases with increasing the pressure. But it changes slightly with the applied voltage and the frequency.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lichun Li, Lifang Dong, Hongfang Wang, and Fucheng Liu "Argon (2P→1S) spectral lines measurement in dielectric barrier discharge (DBD) by optical emission spectroscopy", Proc. SPIE 6723, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 67235J (27 November 2007); https://doi.org/10.1117/12.783784
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KEYWORDS
Argon

Dielectrics

Molecules

Electrons

Emission spectroscopy

Plasma

Optical testing

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