2013
DOI: 10.1063/1.4804369
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Simultaneous measurement of nitrogen and hydrogen dissociation from vacuum ultraviolet self-absorption spectroscopy in a developing low temperature plasma at atmospheric pressure

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Cited by 17 publications
(9 citation statements)
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“…28) [77], [78]. Already at the comparatively long wavelengths of about 120-130 nm, it became apparent that self-absorption played a significant role, eventually leading to direct photoionization at wavelengths below 100 nm.…”
Section: A Temporally Resolved Breakdown Basic Researchmentioning
confidence: 98%
“…28) [77], [78]. Already at the comparatively long wavelengths of about 120-130 nm, it became apparent that self-absorption played a significant role, eventually leading to direct photoionization at wavelengths below 100 nm.…”
Section: A Temporally Resolved Breakdown Basic Researchmentioning
confidence: 98%
“…Thus, the measurement of the line intensity ratio is a measure for the number density of the lower level. This method has been employed for noble gases, silicon, and oxygen [63,[66][67][68][69]. Furthermore, the method has been validated by a comparison to conventional absorption spectroscopy for the case of an argon plasma [70].…”
Section: Branching Ratio Analysismentioning
confidence: 98%
“…We recently reported 12 favorable results in passively measuring the dissociated density of H and N atoms in H 2 /N 2 plasmas by monitoring the HI/NI spectrum in the 120-125 nm range using the vacuum ultraviolet selfabsorption spectroscopy (VUV-SAS) method, with measured atom densities on the order $10 17 cm…”
Section: Plasma Formationmentioning
confidence: 99%
“…It is observed during the calculations that an uncertainty in the Boltzmann electronic temperature of 610% results in a change in the estimated atom densities by about 630%. Note that previous studies 12 investigated the effect of assuming a non-Gaussian plasma channel geometry in the estimation of atom densities. For example, in the extreme case of a relatively hollow plasma geometry with peak plasma densities near the channel edge (such geometries correspond to energetic shockwaves which result from very high current discharges 22 ), it is observed that the estimated atom densities change by a factor of about 2-3.…”
Section: à3mentioning
confidence: 99%