A KHz frequency cold atmospheric pressure argon plasma jet for the emission of O(1S) auroral lines in ambient air

Abstract Creation of the “auroral” green line, a fascinating occurrence commonly observed in the upper atmosphere, has long been a difficult endeavor, especially at atmospheric pressure. Here we report strong emission of the “auroral” green line for the first time in a kHz frequency, linear field at...

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Autores principales: S. Jaiswal, E. M. Aguirre, G. Veda Prakash
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Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/e1c017a3900b483ebd7034c218ab7815
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spelling oai:doaj.org-article:e1c017a3900b483ebd7034c218ab78152021-12-02T11:50:40ZA KHz frequency cold atmospheric pressure argon plasma jet for the emission of O(1S) auroral lines in ambient air10.1038/s41598-021-81488-x2045-2322https://doaj.org/article/e1c017a3900b483ebd7034c218ab78152021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81488-xhttps://doaj.org/toc/2045-2322Abstract Creation of the “auroral” green line, a fascinating occurrence commonly observed in the upper atmosphere, has long been a difficult endeavor, especially at atmospheric pressure. Here we report strong emission of the “auroral” green line for the first time in a kHz frequency, linear field atmospheric pressure plasma jet system. The device used 99.999% pure argon as a working gas for the plasma generation. Optical emission spectroscopy measurements of the after discharge region show the existence of 557.7 nm emission which corresponds to the transition O( $$^1$$ 1 S)–O( $$^1$$ 1 D). The intensity of the produced green line is strong enough that the entire plasma plume in the ambient air is visible as a green plasma. We provide the chemical reactions of O( $$^1$$ 1 S) production in the plasma and the estimation of the density of the O( $$^1$$ 1 S) metastable state using the kinetic reactions. Further, the O( $$^1$$ 1 S) emission is characterized by changing the flow rate of argon, applied voltage and electrode gap. The adequate plasma length ( $$> 25 \, \hbox {mm}$$ > 25 mm ) along with the production of a variety of reactive components viz; OH, $${\hbox {N}}_{2}^{+}$$ N 2 + and oxygen (777 nm) make this configuration useful for applications such as: blood coagulation, cancer treatment, sterilization, and waste treatment. Moreover, this setup can be potentially used as a test bed for the in-depth understanding of plasma chemistry relevant to the aurora and comet tails using a laboratory setting.S. JaiswalE. M. AguirreG. Veda PrakashNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
S. Jaiswal
E. M. Aguirre
G. Veda Prakash
A KHz frequency cold atmospheric pressure argon plasma jet for the emission of O(1S) auroral lines in ambient air
description Abstract Creation of the “auroral” green line, a fascinating occurrence commonly observed in the upper atmosphere, has long been a difficult endeavor, especially at atmospheric pressure. Here we report strong emission of the “auroral” green line for the first time in a kHz frequency, linear field atmospheric pressure plasma jet system. The device used 99.999% pure argon as a working gas for the plasma generation. Optical emission spectroscopy measurements of the after discharge region show the existence of 557.7 nm emission which corresponds to the transition O( $$^1$$ 1 S)–O( $$^1$$ 1 D). The intensity of the produced green line is strong enough that the entire plasma plume in the ambient air is visible as a green plasma. We provide the chemical reactions of O( $$^1$$ 1 S) production in the plasma and the estimation of the density of the O( $$^1$$ 1 S) metastable state using the kinetic reactions. Further, the O( $$^1$$ 1 S) emission is characterized by changing the flow rate of argon, applied voltage and electrode gap. The adequate plasma length ( $$> 25 \, \hbox {mm}$$ > 25 mm ) along with the production of a variety of reactive components viz; OH, $${\hbox {N}}_{2}^{+}$$ N 2 + and oxygen (777 nm) make this configuration useful for applications such as: blood coagulation, cancer treatment, sterilization, and waste treatment. Moreover, this setup can be potentially used as a test bed for the in-depth understanding of plasma chemistry relevant to the aurora and comet tails using a laboratory setting.
format article
author S. Jaiswal
E. M. Aguirre
G. Veda Prakash
author_facet S. Jaiswal
E. M. Aguirre
G. Veda Prakash
author_sort S. Jaiswal
title A KHz frequency cold atmospheric pressure argon plasma jet for the emission of O(1S) auroral lines in ambient air
title_short A KHz frequency cold atmospheric pressure argon plasma jet for the emission of O(1S) auroral lines in ambient air
title_full A KHz frequency cold atmospheric pressure argon plasma jet for the emission of O(1S) auroral lines in ambient air
title_fullStr A KHz frequency cold atmospheric pressure argon plasma jet for the emission of O(1S) auroral lines in ambient air
title_full_unstemmed A KHz frequency cold atmospheric pressure argon plasma jet for the emission of O(1S) auroral lines in ambient air
title_sort khz frequency cold atmospheric pressure argon plasma jet for the emission of o(1s) auroral lines in ambient air
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/e1c017a3900b483ebd7034c218ab7815
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