Utilization of self-lasing radiation for characterization of plasma discharge waveguides

Abstract Naturally occurring self-lasing of a confined plasma discharge is used as a plasma diagnostic. Together with other readily measurable parameters such as discharge voltage and current, the laser radiation provides the necessary constraints for fitting the parameters of a plasma chemistry mod...

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Bibliographic Details
Published inJournal of physics. D, Applied physics Vol. 57; no. 9; pp. 95203 - 95210
Main Authors Kaganovich, D, Petrov, G, Hafizi, B
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.03.2024
Subjects
nitrogen laser
plasma diagnostic
waveguide
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Summary:Abstract Naturally occurring self-lasing of a confined plasma discharge is used as a plasma diagnostic. Together with other readily measurable parameters such as discharge voltage and current, the laser radiation provides the necessary constraints for fitting the parameters of a plasma chemistry model. The model determines the plasma density, electron temperature and excited-state populations as functions of time and space and shows excellent agreement with experiments performed in a nitrogen-filled discharge tube. Plasma self-lasing has been observed in a form of a ring and has a plasma density profile that can be employed for optical guiding.
Bibliography:JPhysD-134954.R1
ISSN:0022-3727
1361-6463
DOI:10.1088/1361-6463/ad0ef7