Greb, Arthur, Niemi, Kari orcid.org/0000-0001-6134-1974, O'Connell, Deborah orcid.org/0000-0002-1457-9004 et al. (1 more author) (2014) Energy resolved actinometry for simultaneous measurement of atomic oxygen densities and local mean electron energies in radio-frequency driven plasmas. Applied Physics Letters. 234105. ISSN 0003-6951
Abstract
A diagnostic method for the simultaneous determination of atomic oxygen densities and mean electron energies is demonstrated for an atmospheric pressure radio-frequency plasma jet. The proposed method is based on phase resolved optical emission measurements of the direct and dissociative electron-impact excitation dynamics of three distinct emission lines, namely, Ar 750.4 nm, O 777.4 nm, and O 844.6 nm. The energy dependence of these lines serves as basis for analysis by taking into account two line ratios. In this frame, the method is highly adaptable with regard to pressure and gas composition. Results are benchmarked against independent numerical simulations and two-photon absorption laser-induced fluorescence experiments.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2014 The Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Funding Information: | Funder Grant number EPSRC EP/K018388/1 |
Depositing User: | Pure (York) |
Date Deposited: | 09 Mar 2015 12:46 |
Last Modified: | 18 Dec 2024 00:05 |
Published Version: | https://doi.org/10.1063/1.4903931 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1063/1.4903931 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:84036 |
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Description: Energy resolved actinometry for simultaneous measurement of atomic oxygen densities and local mean electron energies in radio-frequency driven plasmas