{"id":438,"date":"2023-05-14T17:47:25","date_gmt":"2023-05-14T15:47:25","guid":{"rendered":"https:\/\/aept.blogs.ruhr-uni-bochum.de\/?page_id=438"},"modified":"2023-05-14T17:48:19","modified_gmt":"2023-05-14T15:48:19","slug":"david-schulenberg","status":"publish","type":"page","link":"https:\/\/aept.blogs.ruhr-uni-bochum.de\/de\/david-schulenberg\/","title":{"rendered":"David Schulenberg, M.Sc."},"content":{"rendered":"

Researcher<\/p>\n\n\n\n

\n
\n

Address<\/strong>
Ruhr-Uni\u00adver\u00adsi\u00adt\u00e4t Bo\u00adchum
Fakult\u00e4t f\u00fcr Elektrotechnik und Informationstechnik
Angewandte Elektrodynamik und Plasmatechnik
Uni\u00adver\u00adsi\u00adt\u00e4ts\u00adstra\u00ad\u00dfe 150
D-44801 Bo\u00adchum, Germany<\/p>\n\n\n\n

Room<\/strong>
ID 1\/118<\/p>\n\n\n\n

Phone<\/strong>
+49 234 32 23122<\/p>\n\n\n\n

Email<\/strong>
schulenberg(at)aept.rub.de<\/p>\n<\/div>\n\n\n\n

\n
\"\"<\/figure>\n<\/div>\n<\/div>\n\n\n\n
\n\n\n\n

Publications<\/strong><\/p>\n\n\n

\n\n\t\t2825793<\/span>\n\t\t<\/span>\n\t\t<\/span>\n\t\t<\/span>\n\t\tSchulenberg<\/span>\n\t\t<\/span>\n <\/span>\n\t\t1<\/span>\n\t\tapa<\/span>\n\t\t50<\/span>\n\t\tdate<\/span>\n\t\tdesc<\/span>\n\t\tyear<\/span>\n\t\t<\/span>\n\t\t<\/span>\n\t\t<\/span>\n\t\t<\/span>\n\t\t<\/span>\n\t\t1<\/span>\n\t\t<\/span>\n\t\t<\/span>\n\t\t<\/span>\n Schulenberg<\/span>\n 438<\/span>\n\t\thttps:\/\/aept.blogs.ruhr-uni-bochum.de\/wp-content\/plugins\/zotpress\/<\/span>\n\n\t\t
\n\t\t\t
\n\t\t\t\t%7B%22status%22%3A%22success%22%2C%22updateneeded%22%3Afalse%2C%22instance%22%3Afalse%2C%22meta%22%3A%7B%22request_last%22%3A0%2C%22request_next%22%3A0%2C%22used_cache%22%3Atrue%7D%2C%22data%22%3A%5B%7B%22key%22%3A%22PJQ9VD8G%22%2C%22library%22%3A%7B%22id%22%3A2825793%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Schulenberg%20et%20al.%22%2C%22parsedDate%22%3A%222026-01-01%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3B%26lt%3Bstrong%26gt%3BSchulenberg%26lt%3B%5C%2Fstrong%26gt%3B%2C%20D.%20A.%2C%20Wang%2C%20X.-K.%2C%20Vass%2C%20M.%2C%20Korolov%2C%20I.%2C%20Mussenbrock%2C%20T.%2C%20%26amp%3B%20Schulze%2C%20J.%20%282026%29.%20Two-dimensional%20spatially%20resolved%20measurements%20of%20helium%20metastable%20densities%20by%20tunable%20diode%20laser%20absorption%20spectroscopy%20in%20atmospheric%20pressure%20RF%20plasma%20jets.%20%26lt%3Bi%26gt%3BReview%20of%20Scientific%20Instruments%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B97%26lt%3B%5C%2Fi%26gt%3B%281%29%2C%20013505.%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1063%5C%2F5.0292405%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1063%5C%2F5.0292405%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3Ba%20title%3D%26%23039%3BCite%20in%20RIS%20Format%26%23039%3B%20class%3D%26%23039%3Bzp-CiteRIS%26%23039%3B%20data-zp-cite%3D%26%23039%3Bapi_user_id%3D2825793%26amp%3Bitem_key%3DPJQ9VD8G%26%23039%3B%20href%3D%26%23039%3Bjavascript%3Avoid%280%29%3B%26%23039%3B%26gt%3BCite%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Two-dimensional%20spatially%20resolved%20measurements%20of%20helium%20metastable%20densities%20by%20tunable%20diode%20laser%20absorption%20spectroscopy%20in%20atmospheric%20pressure%20RF%20plasma%20jets%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%20A.%22%2C%22lastName%22%3A%22Schulenberg%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Xiao-Kun%22%2C%22lastName%22%3A%22Wang%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M%5Cu00e1t%5Cu00e9%22%2C%22lastName%22%3A%22Vass%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Ihor%22%2C%22lastName%22%3A%22Korolov%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Thomas%22%2C%22lastName%22%3A%22Mussenbrock%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julian%22%2C%22lastName%22%3A%22Schulze%22%7D%5D%2C%22abstractNote%22%3A%22Helium%20metastable%20species%20play%20a%20critical%20role%20in%20sustaining%20radio-frequency-driven%20micro-atmospheric%20pressure%20plasma%20jets%20through%20Penning%20ionization%20and%20in%20the%20generation%20of%20reactive%20oxygen%20and%20nitrogen%20species.%20Their%20densities%20are%20typically%20measured%20using%20tunable%20diode%20laser%20absorption%20spectroscopy%20%28TDLAS%29.%20Most%20spatially%20resolved%20TDLAS%20approaches%20rely%20on%20mechanical%20scanning%20of%20a%20narrow%20laser%20beam%20across%20the%20plasma%2C%20which%20is%20time-consuming%20and%20limits%20spatial%20resolution.%20In%20this%20study%2C%20we%20present%20an%20advanced%20two-dimensional%20%282D%29%20TDLAS%20method%20that%20enables%20direct%20spatial%20mapping%20of%20helium%20metastable%20densities%20without%20the%20need%20for%20mechanical%20scanning.%20A%20rotating%20optical%20diffuser%20is%20employed%20to%20suppress%20speckle%20interference%20and%20generate%20uniform%20illumination%20across%20the%20plasma%20region.%20The%20absorption%20profile%20is%20captured%20using%20a%20short-wavelength%20infrared%20camera%20equipped%20with%20a%20telecentric%20lens%2C%20achieving%20high%20spatial%20resolution%20%28%5Cu223c10%20%5Cu03bcm%29%20across%20the%20entire%20field%20of%20view.%20This%20approach%20significantly%20enhances%20both%20data%20quality%20and%20acquisition%20speed.%20The%20improved%202D%20TDLAS%20system%20is%20applied%20to%20measure%20helium%20metastable%20densities%20in%20plasma%20jets%20with%20structured%20electrodes%20driven%20by%20different%20tailored%20voltage%20waveforms.%20The%20results%20show%20very%20good%20qualitative%20agreement%20with%20fluid%20simulations%20and%20previously%20reported%20experimental%20data.%22%2C%22date%22%3A%222026-01-01%22%2C%22section%22%3A%22%22%2C%22partNumber%22%3A%22%22%2C%22partTitle%22%3A%22%22%2C%22DOI%22%3A%2210.1063%5C%2F5.0292405%22%2C%22citationKey%22%3A%22%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fpubs.aip.org%5C%2Frsi%5C%2Farticle%5C%2F97%5C%2F1%5C%2F013505%5C%2F3378059%5C%2FTwo-dimensional-spatially-resolved-measurements-of%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%220034-6748%2C%201089-7623%22%2C%22language%22%3A%22en%22%2C%22collections%22%3A%5B%5D%2C%22dateModified%22%3A%222026-01-28T07%3A56%3A04Z%22%7D%7D%2C%7B%22key%22%3A%22MA7H6IGH%22%2C%22library%22%3A%7B%22id%22%3A2825793%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Klich%20et%20al.%22%2C%22parsedDate%22%3A%222025-04-01%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BKlich%2C%20M.%2C%20%26lt%3Bstrong%26gt%3BSchulenberg%26lt%3B%5C%2Fstrong%26gt%3B%2C%20D.%2C%20Wilczek%2C%20S.%2C%20Vass%2C%20M.%2C%20Bolles%2C%20T.%2C%20Korolov%2C%20I.%2C%20Schulze%2C%20J.%2C%20Mussenbrock%2C%20T.%2C%20%26amp%3B%20Brinkmann%2C%20R.%20P.%20%282025%29.%20Electron%20dynamics%20of%20three%20distinct%20discharge%20modes%20of%20a%20cross-field%20atmospheric%20pressure%20plasma%20jet.%20%26lt%3Bi%26gt%3BPlasma%20Sources%20Science%20and%20Technology%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B34%26lt%3B%5C%2Fi%26gt%3B%284%29%2C%20045012.%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Fadc7d8%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Fadc7d8%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3Ba%20title%3D%26%23039%3BCite%20in%20RIS%20Format%26%23039%3B%20class%3D%26%23039%3Bzp-CiteRIS%26%23039%3B%20data-zp-cite%3D%26%23039%3Bapi_user_id%3D2825793%26amp%3Bitem_key%3DMA7H6IGH%26%23039%3B%20href%3D%26%23039%3Bjavascript%3Avoid%280%29%3B%26%23039%3B%26gt%3BCite%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Electron%20dynamics%20of%20three%20distinct%20discharge%20modes%20of%20a%20cross-field%20atmospheric%20pressure%20plasma%20jet%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M%22%2C%22lastName%22%3A%22Klich%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22D%22%2C%22lastName%22%3A%22Schulenberg%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22S%22%2C%22lastName%22%3A%22Wilczek%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M%22%2C%22lastName%22%3A%22Vass%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22T%22%2C%22lastName%22%3A%22Bolles%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22I%22%2C%22lastName%22%3A%22Korolov%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22J%22%2C%22lastName%22%3A%22Schulze%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22T%22%2C%22lastName%22%3A%22Mussenbrock%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22R%20P%22%2C%22lastName%22%3A%22Brinkmann%22%7D%5D%2C%22abstractNote%22%3A%22This%20study%20investigates%20electron%20dynamics%20in%20three%20distinct%20discharge%20modes%20of%20a%20cross-field%20atmospheric%20pressure%20plasma%20jet%3A%20the%20non-neutral%2C%20quasi-neutral%2C%20and%20constricted%20modes.%20Using%20a%20hybrid%20Particle-In-Cell%5C%2FMonte%20Carlo%20Collisions%20simulation%2C%20we%20systematically%20vary%20the%20applied%20voltage%20and%20driving%20frequency%20to%20explore%20these%20modes%20and%20their%20transitions.%20At%20low%20power%2C%20the%20discharge%20operates%20in%20a%20non-neutral%20mode%2C%20characterized%20by%20near-extinction%20behavior%2C%20analogous%20to%20the%20chaotic%20mode%20in%20other%20plasma%20devices.%20As%20power%20increases%2C%20the%20plasma%20transitions%20to%20a%20quasi-neutral%20mode%2C%20exhibiting%20the%20%5Cu03a9-%20and%20Penning-mode%20heating%20mechanisms%2C%20similar%20to%20the%20bullet%20mode%20in%20parallel-field%20jets.%20At%20high%20power%2C%20the%20discharge%20enters%20a%20constricted%20mode%2C%20where%20plasma%20density%20increases%20significantly%2C%20and%20the%20discharge%20contracts%20toward%20the%20electrodes%20along%20the%20entire%20channel.%20Experimental%20validation%20using%20phase-resolved%20optical%20emission%20spectroscopy%20confirms%20the%20existence%20of%20the%20constricted%20mode%20as%20a%20distinct%20operational%20regime.%20These%20findings%20provide%20deeper%20insights%20into%20discharge%20mode%20transitions%2C%20contributing%20to%20the%20optimization%20of%20atmospheric%20pressure%20plasmas%20for%20various%20applications.%22%2C%22date%22%3A%222025-04-01%22%2C%22section%22%3A%22%22%2C%22partNumber%22%3A%22%22%2C%22partTitle%22%3A%22%22%2C%22DOI%22%3A%2210.1088%5C%2F1361-6595%5C%2Fadc7d8%22%2C%22citationKey%22%3A%22%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fiopscience.iop.org%5C%2Farticle%5C%2F10.1088%5C%2F1361-6595%5C%2Fadc7d8%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%220963-0252%2C%201361-6595%22%2C%22language%22%3A%22en%22%2C%22collections%22%3A%5B%5D%2C%22dateModified%22%3A%222025-04-23T15%3A50%3A05Z%22%7D%7D%2C%7B%22key%22%3A%22C2H7MI2Q%22%2C%22library%22%3A%7B%22id%22%3A2825793%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Beckfeld%20et%20al.%22%2C%22parsedDate%22%3A%222025-03-01%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BBeckfeld%2C%20F.%2C%20Masheyeva%2C%20R.%2C%20Derzsi%2C%20A.%2C%20%26lt%3Bstrong%26gt%3BSchulenberg%26lt%3B%5C%2Fstrong%26gt%3B%2C%20D.%20A.%2C%20Korolov%2C%20I.%2C%20Bock%2C%20C.%2C%20Schulze%2C%20J.%2C%20%26amp%3B%20Donk%26%23xF3%3B%2C%20Z.%20%282025%29.%20Effective%20secondary%20electron%20yields%20for%20different%20surface%20materials%20in%20capacitively%20coupled%20plasmas.%20%26lt%3Bi%26gt%3BPlasma%20Sources%20Science%20and%20Technology%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B34%26lt%3B%5C%2Fi%26gt%3B%283%29%2C%20035009.%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Fadb885%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Fadb885%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3Ba%20title%3D%26%23039%3BCite%20in%20RIS%20Format%26%23039%3B%20class%3D%26%23039%3Bzp-CiteRIS%26%23039%3B%20data-zp-cite%3D%26%23039%3Bapi_user_id%3D2825793%26amp%3Bitem_key%3DC2H7MI2Q%26%23039%3B%20href%3D%26%23039%3Bjavascript%3Avoid%280%29%3B%26%23039%3B%26gt%3BCite%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Effective%20secondary%20electron%20yields%20for%20different%20surface%20materials%20in%20capacitively%20coupled%20plasmas%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Florian%22%2C%22lastName%22%3A%22Beckfeld%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Ranna%22%2C%22lastName%22%3A%22Masheyeva%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Aranka%22%2C%22lastName%22%3A%22Derzsi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%20A%22%2C%22lastName%22%3A%22Schulenberg%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Ihor%22%2C%22lastName%22%3A%22Korolov%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Claudia%22%2C%22lastName%22%3A%22Bock%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julian%22%2C%22lastName%22%3A%22Schulze%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Zolt%5Cu00e1n%22%2C%22lastName%22%3A%22Donk%5Cu00f3%22%7D%5D%2C%22abstractNote%22%3A%22Abstract%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20Processes%20at%20the%20plasma%20boundaries%2C%20including%20the%20electrodes%2C%20can%20significantly%20influence%20plasma%20properties%2C%20among%20them%20the%20plasma%20density%2C%20the%20flux-energy%20distribution%20of%20various%20particle%20species%2C%20etc.%20The%20emission%20of%20secondary%20electrons%2C%20in%20particular%2C%20can%20lead%20to%20ionization%20avalanches%2C%20which%20strongly%20increase%20the%20plasma%20density%20and%20change%20the%20discharge%20operation%20mode%20as%20a%20function%20of%20the%20operating%20conditions.%20Using%20reliable%20values%20to%20characterize%20the%20efficiency%20of%20such%20processes%20is%20indispensable%20for%20accurate%20numerical%20modeling.%20There%20is%2C%20however%2C%20a%20lack%20of%20such%20data%20for%20surface%20coefficients%20for%20arbitrary%20combinations%20of%20the%20plasma%20species%20and%20electrode%20materials%20and%20surface%20conditions.%20In%20this%20work%2C%20we%20investigate%20the%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cu03b1%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20-%20to%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cu03b3%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20-mode%20mode%20transition%20induced%20by%20changes%20of%20the%20operating%20conditions%20%28voltage%2C%20pressure%29%20in%20capacitively%20coupled%20argon%20plasmas%20for%20different%20electrode%20surface%20materials%20%28copper%2C%20nickel%2C%20gold%2C%20aluminum%2C%20and%20stainless%20steel%29%20and%20target%20the%20determination%20of%20the%20effective%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20in-situ%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20secondary%20electron%20emission%20coefficient%2C%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cu03b3%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cu2217%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20.%20The%20first%20is%20accomplished%20by%20phase-resolved%20optical%20emission%20spectroscopy%20applied%20to%20measure%20the%20spatio-temporal%20distribution%20of%20the%20electron-impact%20excitation%20rate%20from%20the%20ground%20state%20into%20a%20high-threshold-energy%20level%20of%20a%20tracer%20gas%20%28neon%29.%20The%20studies%20are%20conducted%20for%20pressures%20between%2050%20Pa%20and%20200%20Pa%20and%20voltage%20amplitudes%20ranging%20from%20150%20V%20to%20350%20V%20at%20a%20driving%20frequency%20of%2013.56%20MHz.%20A%20transition%20from%20the%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cu03b1%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20-%20to%20the%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cu03b3%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20-mode%20is%20shown%20to%20take%20place%20at%20different%20pressures%20for%20different%20materials.%20The%20combination%20of%20these%20measurements%20with%20particle-in-cell%20%5C%2F%20Monte%20Carlo%20collisions%20simulations%20employing%20a%20range%20of%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cu03b3%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cu2217%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20values%20allows%20the%20determination%20of%20the%20effective%20%5Cu2018%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20in-situ%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5Cu2019%20electron%20yield%20for%20the%20given%20set%20of%20operating%20conditions.%20The%20simulations%20also%20shed%20light%20on%20the%20contributions%20of%20the%20various%20species%2C%20argon%20ions%2C%20metastable%20atoms%2C%20and%20vacuum-ultraviolet%20photons%20to%20electron%20emission%20from%20the%20electrodes.%20The%20findings%20suggest%20that%20for%20precise%20modeling%20individual%20secondary%20electron%20yields%20specific%20to%20different%20electrode%20surface%20materials%20should%20be%20used%20and%20multiple%20species%20should%20be%20included%20in%20the%20models%20that%20describe%20secondary%20electron%20emission%20at%20the%20electrodes.%22%2C%22date%22%3A%222025-03-01%22%2C%22section%22%3A%22%22%2C%22partNumber%22%3A%22%22%2C%22partTitle%22%3A%22%22%2C%22DOI%22%3A%2210.1088%5C%2F1361-6595%5C%2Fadb885%22%2C%22citationKey%22%3A%22%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fiopscience.iop.org%5C%2Farticle%5C%2F10.1088%5C%2F1361-6595%5C%2Fadb885%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%220963-0252%2C%201361-6595%22%2C%22language%22%3A%22en%22%2C%22collections%22%3A%5B%5D%2C%22dateModified%22%3A%222025-03-14T16%3A30%3A27Z%22%7D%7D%2C%7B%22key%22%3A%22S8L2C6CK%22%2C%22library%22%3A%7B%22id%22%3A2825793%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Vass%20et%20al.%22%2C%22parsedDate%22%3A%222024-11-01%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BVass%2C%20M.%2C%20%26lt%3Bstrong%26gt%3BSchulenberg%26lt%3B%5C%2Fstrong%26gt%3B%2C%20D.%2C%20Donk%26%23xF3%3B%2C%20Z.%2C%20Hartmann%2C%20P.%2C%20Steuer%2C%20D.%2C%20B%26%23xF6%3Bke%2C%20M.%2C%20Schulz-von%20Der%20Gathen%2C%20V.%2C%20Korolov%2C%20I.%2C%20Mussenbrock%2C%20T.%2C%20%26amp%3B%20Schulze%2C%20J.%20%282024%29.%20Energy%20efficiency%20of%20reactive%20species%20generation%20in%20radio%20frequency%20atmospheric%20pressure%20plasma%20jets%20driven%20by%20tailored%20voltage%20waveforms%20in%20a%20He%5C%2FO%26lt%3Bsub%26gt%3B2%26lt%3B%5C%2Fsub%26gt%3B%20mixture.%20%26lt%3Bi%26gt%3BPlasma%20Sources%20Science%20and%20Technology%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B33%26lt%3B%5C%2Fi%26gt%3B%2811%29%2C%2011LT01.%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Fad8ae7%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Fad8ae7%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3Ba%20title%3D%26%23039%3BCite%20in%20RIS%20Format%26%23039%3B%20class%3D%26%23039%3Bzp-CiteRIS%26%23039%3B%20data-zp-cite%3D%26%23039%3Bapi_user_id%3D2825793%26amp%3Bitem_key%3DS8L2C6CK%26%23039%3B%20href%3D%26%23039%3Bjavascript%3Avoid%280%29%3B%26%23039%3B%26gt%3BCite%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Energy%20efficiency%20of%20reactive%20species%20generation%20in%20radio%20frequency%20atmospheric%20pressure%20plasma%20jets%20driven%20by%20tailored%20voltage%20waveforms%20in%20a%20He%5C%2FO%3Csub%3E2%3C%5C%2Fsub%3E%20mixture%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M%5Cu00e1t%5Cu00e9%22%2C%22lastName%22%3A%22Vass%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Schulenberg%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Zolt%5Cu00e1n%22%2C%22lastName%22%3A%22Donk%5Cu00f3%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Peter%22%2C%22lastName%22%3A%22Hartmann%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Steuer%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Marc%22%2C%22lastName%22%3A%22B%5Cu00f6ke%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Volker%22%2C%22lastName%22%3A%22Schulz-von%20Der%20Gathen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Ihor%22%2C%22lastName%22%3A%22Korolov%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Thomas%22%2C%22lastName%22%3A%22Mussenbrock%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julian%22%2C%22lastName%22%3A%22Schulze%22%7D%5D%2C%22abstractNote%22%3A%22The%20effect%20of%20the%20shape%20of%20the%20applied%20voltage%20waveform%20on%20the%20energy%20efficiency%20of%20reactive%20species%20generation%20is%20investigated%20in%20an%20atmospheric%20pressure%20RF%20microplasma%20jet%20operated%20in%20a%20He%5C%2FO2%20mixture%20%2899.5%25%5C%2F0.5%25%29%20based%20on%20a%20one-dimensional%20hybrid%20fluid-kinetic%20simulation%20method.%20Using%20a%20tailored%20waveform%20synthesized%20from%20four%20consecutive%20harmonics%20%28with%20a%20base%20frequency%20of%20fb%20%3D%2013.56%20MHz%20and%20amplitudes%20of%20%28160%5C%2Fk%29%20V%20for%20the%20k-th%20harmonic%29%2C%20it%20is%20shown%20that%20by%20changing%20the%20identical%20phases%20of%20the%20even%20harmonics%20in%20the%20waveform%2C%20%5Cu03c6%2C%20the%20generation%20efficiencies%20of%20three%20specific%20reactive%20species%20%28helium%20metastables%2C%20atomic%20and%20vibrationally%20excited%20oxygen%29%2C%20defined%20as%20the%20ratio%20of%20mean%20density%20and%20input%20plasma%20power%2C%20attain%20their%20maxima%20for%20different%20values%20of%20%5Cu03c6%2C%20due%20to%20changes%20in%20the%20Electron%20Energy%20Probability%20Function%20%28EEPF%29.%20The%20phase%20control%20of%20the%20EEPF%20and%20its%20critical%20role%20in%20modulating%20generation%20energy%20efficiencies%20are%20explained%20in%20detail.%20The%20simulation%20results%20are%20verified%20by%20experimental%20%28Phase%20Resolved%20Optical%20Emission%20Spectroscopy%20and%20Two%20Photon%20Absorption%20Laser%20Induced%20Fluorescence%29%20data.%22%2C%22date%22%3A%222024-11-01%22%2C%22section%22%3A%22%22%2C%22partNumber%22%3A%22%22%2C%22partTitle%22%3A%22%22%2C%22DOI%22%3A%2210.1088%5C%2F1361-6595%5C%2Fad8ae7%22%2C%22citationKey%22%3A%22%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fiopscience.iop.org%5C%2Farticle%5C%2F10.1088%5C%2F1361-6595%5C%2Fad8ae7%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%220963-0252%2C%201361-6595%22%2C%22language%22%3A%22en%22%2C%22collections%22%3A%5B%5D%2C%22dateModified%22%3A%222024-11-20T09%3A58%3A13Z%22%7D%7D%2C%7B%22key%22%3A%22866TPMIV%22%2C%22library%22%3A%7B%22id%22%3A2825793%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Schulenberg%20et%20al.%22%2C%22parsedDate%22%3A%222024-01-12%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3B%26lt%3Bstrong%26gt%3BSchulenberg%26lt%3B%5C%2Fstrong%26gt%3B%2C%20D.%20A.%2C%20Vass%2C%20M.%2C%20Klich%2C%20M.%2C%20Donk%26%23xF3%3B%2C%20Z.%2C%20Klotz%2C%20J.%2C%20Bibinov%2C%20N.%2C%20Mussenbrock%2C%20T.%2C%20%26amp%3B%20Schulze%2C%20J.%20%282024%29.%20Mode%20Transition%20Induced%20by%20Gas%20Heating%20Along%20the%20Discharge%20Channel%20in%20Capacitively%20Coupled%20Atmospheric%20Pressure%20Micro%20Plasma%20Jets.%20%26lt%3Bi%26gt%3BPlasma%20Chemistry%20and%20Plasma%20Processing%26lt%3B%5C%2Fi%26gt%3B.%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1007%5C%2Fs11090-023-10444-6%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1007%5C%2Fs11090-023-10444-6%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3Ba%20title%3D%26%23039%3BCite%20in%20RIS%20Format%26%23039%3B%20class%3D%26%23039%3Bzp-CiteRIS%26%23039%3B%20data-zp-cite%3D%26%23039%3Bapi_user_id%3D2825793%26amp%3Bitem_key%3D866TPMIV%26%23039%3B%20href%3D%26%23039%3Bjavascript%3Avoid%280%29%3B%26%23039%3B%26gt%3BCite%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Mode%20Transition%20Induced%20by%20Gas%20Heating%20Along%20the%20Discharge%20Channel%20in%20Capacitively%20Coupled%20Atmospheric%20Pressure%20Micro%20Plasma%20Jets%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%20A.%22%2C%22lastName%22%3A%22Schulenberg%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M%5Cu00e1t%5Cu00e9%22%2C%22lastName%22%3A%22Vass%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Maximilian%22%2C%22lastName%22%3A%22Klich%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Zolt%5Cu00e1n%22%2C%22lastName%22%3A%22Donk%5Cu00f3%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jeldrik%22%2C%22lastName%22%3A%22Klotz%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nikita%22%2C%22lastName%22%3A%22Bibinov%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Thomas%22%2C%22lastName%22%3A%22Mussenbrock%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julian%22%2C%22lastName%22%3A%22Schulze%22%7D%5D%2C%22abstractNote%22%3A%22The%20effects%20of%20neutral%20gas%20heating%20along%20the%20direction%20of%20the%20gas%20flow%20inside%20the%20discharge%20channel%20of%20a%20parallel%20plate%20micro%20atmospheric%20pressure%20plasma%20jet%2C%20the%20COST-jet%2C%20on%20the%20spatio-temporal%20dynamics%20of%20energetic%20electrons%20are%20investigated%20by%20experiments%20and%20simulations.%20The%20plasma%20source%20is%20driven%20by%20a%20single%20frequency%20sinusoidal%20voltage%20waveform%20at%2013.56%20MHz%20in%20helium%20with%20an%20admixture%20%280.05%5Cu20130.2%25%29%20of%20nitrogen.%20Optical%20emission%20spectroscopy%20measurements%20are%20applied%20to%20determine%20the%20spatio-temporally%20resolved%20electron%20impact%20excitation%20dynamics%20from%20the%20ground%20state%20into%20the%20He%20I%20%283s%293S1%20state%20and%20the%20rotational%20temperature%20of%20nitrogen%20molecules%20at%20different%20positions%20along%20the%20direction%20of%20the%20gas%20flow%20inside%20the%2030%20mm%20long%20discharge%20channel.%20The%20gas%20temperature%2C%20which%20is%20assumed%20to%20be%20equal%20to%20the%20N%5Cu200a2%20rotational%20temperature%2C%20is%20found%20to%20increase%20along%20the%20discharge%20channel.%20This%20effect%20is%20attenuated%20as%20the%20nitrogen%20concentration%20is%20increased%20in%20the%20gas%20mixture%2C%20leading%20to%20an%20eventually%20constant%20temperature%20profile.%20The%20experimental%20data%20also%20reveal%20a%20plasma%20operating%20mode%20transition%20along%20the%20discharge%20channel%20from%20the%20%5Cu03a9%5Cu200a-%20to%20the%20Penning-mode%20and%20show%20good%20agreement%20with%20the%20results%20of%201d3v%20kinetic%20simulations%2C%20which%20spatially%20resolve%20the%20inter-electrode%20space%20and%20use%20the%20gas%20temperature%20as%20an%20input%20value.%20The%20simulations%20demonstrate%20that%20the%20increase%20of%20the%20gas%20temperature%20leads%20to%20the%20observed%20mode%20transition.%20The%20results%20suggest%20the%20possibility%20of%20using%20the%20nitrogen%20admixture%20and%20the%20feed%20gas%20temperature%20as%20additional%20control%20parameters%2C%20%28i%29%20to%20tailor%20the%20plasma%20operating%20mode%20along%20the%20direction%20of%20the%20gas%20flow%20so%20that%20the%20production%20of%20specific%20radicals%20is%20optimized%3B%20and%20%28ii%29%20to%20control%20the%20final%20gas%20temperature%20of%20the%20effluent.%20The%20latter%20could%20be%20particularly%20interesting%20for%20biological%20applications%2C%20where%20the%20upper%20gas%20temperature%20limit%20is%20dictated%20by%20the%20rather%20low%20thermal%20damage%20threshold%20of%20the%20treated%20material.%22%2C%22date%22%3A%222024-01-12%22%2C%22section%22%3A%22%22%2C%22partNumber%22%3A%22%22%2C%22partTitle%22%3A%22%22%2C%22DOI%22%3A%2210.1007%5C%2Fs11090-023-10444-6%22%2C%22citationKey%22%3A%22%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Flink.springer.com%5C%2F10.1007%5C%2Fs11090-023-10444-6%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%220272-4324%2C%201572-8986%22%2C%22language%22%3A%22en%22%2C%22collections%22%3A%5B%5D%2C%22dateModified%22%3A%222024-01-14T09%3A59%3A01Z%22%7D%7D%2C%7B%22key%22%3A%22IL8X4JW5%22%2C%22library%22%3A%7B%22id%22%3A2825793%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Vass%20et%20al.%22%2C%22parsedDate%22%3A%222024-01-01%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BVass%2C%20M.%2C%20%26lt%3Bstrong%26gt%3BSchulenberg%26lt%3B%5C%2Fstrong%26gt%3B%2C%20D.%2C%20Donk%26%23xF3%3B%2C%20Z.%2C%20Korolov%2C%20I.%2C%20Hartmann%2C%20P.%2C%20Schulze%2C%20J.%2C%20%26amp%3B%20Mussenbrock%2C%20T.%20%282024%29.%20A%20new%202D%20fluid-MC%20hybrid%20approach%20for%20simulating%20nonequilibrium%20atmospheric%20pressure%20plasmas%3A%20density%20distribution%20of%20atomic%20oxygen%20in%20radio-frequency%20plasma%20jets%20in%20He%5C%2FO%20%26lt%3Bsub%26gt%3B2%26lt%3B%5C%2Fsub%26gt%3B%20mixtures.%20%26lt%3Bi%26gt%3BPlasma%20Sources%20Science%20and%20Technology%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B33%26lt%3B%5C%2Fi%26gt%3B%281%29%2C%20015012.%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Fad1f37%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Fad1f37%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3Ba%20title%3D%26%23039%3BCite%20in%20RIS%20Format%26%23039%3B%20class%3D%26%23039%3Bzp-CiteRIS%26%23039%3B%20data-zp-cite%3D%26%23039%3Bapi_user_id%3D2825793%26amp%3Bitem_key%3DIL8X4JW5%26%23039%3B%20href%3D%26%23039%3Bjavascript%3Avoid%280%29%3B%26%23039%3B%26gt%3BCite%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22A%20new%202D%20fluid-MC%20hybrid%20approach%20for%20simulating%20nonequilibrium%20atmospheric%20pressure%20plasmas%3A%20density%20distribution%20of%20atomic%20oxygen%20in%20radio-frequency%20plasma%20jets%20in%20He%5C%2FO%20%3Csub%3E2%3C%5C%2Fsub%3E%20mixtures%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M%5Cu00e1t%5Cu00e9%22%2C%22lastName%22%3A%22Vass%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Schulenberg%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Zolt%5Cu00e1n%22%2C%22lastName%22%3A%22Donk%5Cu00f3%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Ihor%22%2C%22lastName%22%3A%22Korolov%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Peter%22%2C%22lastName%22%3A%22Hartmann%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julian%22%2C%22lastName%22%3A%22Schulze%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Thomas%22%2C%22lastName%22%3A%22Mussenbrock%22%7D%5D%2C%22abstractNote%22%3A%22A%20spatially%20two%20dimensional%20fluid-MC%20hybrid%20%28fluid-kinetic%29%20simulation%20method%20is%20developed%20and%20applied%20to%20the%20COST%20reference%20microplasma%20jet%20operated%20in%20helium%20with%20an%20oxygen%20admixture%20of%200.5%25%2C%20excited%20by%20a%20single%20frequency%20voltage%20waveform%20with%20f%20%3D%2013.56%20MHz%20and%20%5Cu03d5rms%20%3D%20275%20V.%22%2C%22date%22%3A%222024-01-01%22%2C%22section%22%3A%22%22%2C%22partNumber%22%3A%22%22%2C%22partTitle%22%3A%22%22%2C%22DOI%22%3A%2210.1088%5C%2F1361-6595%5C%2Fad1f37%22%2C%22citationKey%22%3A%22%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fiopscience.iop.org%5C%2Farticle%5C%2F10.1088%5C%2F1361-6595%5C%2Fad1f37%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%220963-0252%2C%201361-6595%22%2C%22language%22%3A%22en%22%2C%22collections%22%3A%5B%5D%2C%22dateModified%22%3A%222024-01-30T19%3A02%3A41Z%22%7D%7D%2C%7B%22key%22%3A%22CIG3TKKY%22%2C%22library%22%3A%7B%22id%22%3A2825793%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Donk%5Cu00f3%20et%20al.%22%2C%22parsedDate%22%3A%222023-06-01%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BDonk%26%23xF3%3B%2C%20Z.%2C%20Hartmann%2C%20P.%2C%20Korolov%2C%20I.%2C%20%26lt%3Bstrong%26gt%3BSchulenberg%26lt%3B%5C%2Fstrong%26gt%3B%2C%20D.%2C%20Rohr%2C%20S.%2C%20Rauf%2C%20S.%2C%20%26amp%3B%20Schulze%2C%20J.%20%282023%29.%20Metastable%20argon%20atom%20kinetics%20in%20a%20low-pressure%20capacitively%20coupled%20radio%20frequency%20discharge.%20%26lt%3Bi%26gt%3BPlasma%20Sources%20Science%20and%20Technology%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B32%26lt%3B%5C%2Fi%26gt%3B%286%29%2C%20065002.%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Facd6b5%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Facd6b5%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3Ba%20title%3D%26%23039%3BCite%20in%20RIS%20Format%26%23039%3B%20class%3D%26%23039%3Bzp-CiteRIS%26%23039%3B%20data-zp-cite%3D%26%23039%3Bapi_user_id%3D2825793%26amp%3Bitem_key%3DCIG3TKKY%26%23039%3B%20href%3D%26%23039%3Bjavascript%3Avoid%280%29%3B%26%23039%3B%26gt%3BCite%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Metastable%20argon%20atom%20kinetics%20in%20a%20low-pressure%20capacitively%20coupled%20radio%20frequency%20discharge%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Zolt%5Cu00e1n%22%2C%22lastName%22%3A%22Donk%5Cu00f3%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Peter%22%2C%22lastName%22%3A%22Hartmann%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Ihor%22%2C%22lastName%22%3A%22Korolov%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Schulenberg%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Stefan%22%2C%22lastName%22%3A%22Rohr%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Shahid%22%2C%22lastName%22%3A%22Rauf%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julian%22%2C%22lastName%22%3A%22Schulze%22%7D%5D%2C%22abstractNote%22%3A%22The%20kinetics%20of%20excited%20atoms%20in%20a%20low-pressure%20argon%20capacitively%20coupled%20plasma%20source%20are%20investigated%20by%20an%20extended%20particle-in-cell%5C%2FMonte%20Carlo%20Collisions%20simulation%20code%20coupled%20with%20a%20diffusion-reaction-radiation%20code%20which%20considers%20a%20large%20number%20of%20excited%20states%20of%20Ar%20atoms.%20The%20spatial%20density%20distribution%20of%20Ar%20atoms%20in%20the%201s5%20state%20within%20the%20electrode%20gap%20and%20the%20gas%20temperature%20are%20also%20determined%20experimentally%20using%20tunable%20diode%20laser%20absorption%20spectroscopy.%20Processes%20involving%20the%20excited%20states%2C%20especially%20the%20four%20lower-lying%201s%20states%20are%20found%20to%20have%20significant%20effects%20on%20the%20ionization%20balance%20of%20the%20discharge.%20The%20level%20of%20agreement%20achieved%20between%20the%20computational%20and%20experimental%20results%20indicates%20that%20the%20discharge%20model%20is%20reasonably%20accurate%20and%20the%20computations%20based%20on%20this%20model%20allow%20the%20identification%20of%20the%20populating%20and%20de-populating%20processes%20of%20the%20excited%20states.%22%2C%22date%22%3A%222023-06-01%22%2C%22section%22%3A%22%22%2C%22partNumber%22%3A%22%22%2C%22partTitle%22%3A%22%22%2C%22DOI%22%3A%2210.1088%5C%2F1361-6595%5C%2Facd6b5%22%2C%22citationKey%22%3A%22%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fiopscience.iop.org%5C%2Farticle%5C%2F10.1088%5C%2F1361-6595%5C%2Facd6b5%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%220963-0252%2C%201361-6595%22%2C%22language%22%3A%22en%22%2C%22collections%22%3A%5B%5D%2C%22dateModified%22%3A%222023-11-07T15%3A48%3A27Z%22%7D%7D%2C%7B%22key%22%3A%2228DCYBSA%22%2C%22library%22%3A%7B%22id%22%3A2825793%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Liu%20et%20al.%22%2C%22parsedDate%22%3A%222023-02-01%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BLiu%2C%20Y.%2C%20Vass%2C%20M.%2C%20H%26%23xFC%3Bbner%2C%20G.%2C%20%26lt%3Bstrong%26gt%3BSchulenberg%26lt%3B%5C%2Fstrong%26gt%3B%2C%20D.%2C%20Hemke%2C%20T.%2C%20Bischoff%2C%20L.%2C%20Chur%2C%20S.%2C%20Steuer%2C%20D.%2C%20Golda%2C%20J.%2C%20B%26%23xF6%3Bke%2C%20M.%2C%20Schulze%2C%20J.%2C%20Korolov%2C%20I.%2C%20%26amp%3B%20Mussenbrock%2C%20T.%20%282023%29.%20Local%20enhancement%20of%20electron%20heating%20and%20neutral%20species%20generation%20in%20radio-frequency%20micro-atmospheric%20pressure%20plasma%20jets%3A%20the%20effects%20of%20structured%20electrode%20topologies.%20%26lt%3Bi%26gt%3BPlasma%20Sources%20Science%20and%20Technology%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B32%26lt%3B%5C%2Fi%26gt%3B%282%29%2C%20025012.%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Facb9b8%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Facb9b8%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3Ba%20title%3D%26%23039%3BCite%20in%20RIS%20Format%26%23039%3B%20class%3D%26%23039%3Bzp-CiteRIS%26%23039%3B%20data-zp-cite%3D%26%23039%3Bapi_user_id%3D2825793%26amp%3Bitem_key%3D28DCYBSA%26%23039%3B%20href%3D%26%23039%3Bjavascript%3Avoid%280%29%3B%26%23039%3B%26gt%3BCite%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Local%20enhancement%20of%20electron%20heating%20and%20neutral%20species%20generation%20in%20radio-frequency%20micro-atmospheric%20pressure%20plasma%20jets%3A%20the%20effects%20of%20structured%20electrode%20topologies%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yue%22%2C%22lastName%22%3A%22Liu%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M%5Cu00e1t%5Cu00e9%22%2C%22lastName%22%3A%22Vass%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Gerrit%22%2C%22lastName%22%3A%22H%5Cu00fcbner%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Schulenberg%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Torben%22%2C%22lastName%22%3A%22Hemke%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Lena%22%2C%22lastName%22%3A%22Bischoff%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Sascha%22%2C%22lastName%22%3A%22Chur%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Steuer%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Judith%22%2C%22lastName%22%3A%22Golda%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Marc%22%2C%22lastName%22%3A%22B%5Cu00f6ke%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julian%22%2C%22lastName%22%3A%22Schulze%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Ihor%22%2C%22lastName%22%3A%22Korolov%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Thomas%22%2C%22lastName%22%3A%22Mussenbrock%22%7D%5D%2C%22abstractNote%22%3A%22Abstract%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20The%20effects%20of%20structured%20electrode%20topologies%20on%20He%5C%2FO%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%202%5Cn%20%20%20%20%20%20%20%20%20%20%20%20%20%20radio%20frequency%20micro-atmospheric%20pressure%20plasma%20jets%20driven%20at%2013.56%5Cu2009MHz%20are%20investigated%20by%20a%20combination%20of%202D%20fluid%20simulations%20and%20experiments.%20Good%20qualitative%20agreement%20is%20found%20between%20the%20computational%20and%20experimental%20results%20for%20the%202D%20spatio-temporally%20resolved%20dynamics%20of%20energetic%20electrons%20measured%20by%20phase%20resolved%20optical%20emission%20spectroscopy%2C%202D%20spatially%20resolved%20helium%20metastable%20densities%20measured%20by%20tunable%20diode%20laser%20absorption%20spectroscopy%20and%202D%20spatially%20resolved%20atomic%20oxygen%20densities%20measured%20by%20two%20photon%20absorption%20laser%20induced%20fluorescence.%20The%20presence%20of%20rectangular%20trenches%20of%20specific%20dimensions%20inside%20the%20electrodes%20is%20found%20to%20cause%20a%20local%20increase%20of%20the%20electron%20power%20absorption%20inside%20and%20above%5C%2Fbelow%20these%20surface%20structures.%20This%20method%20of%20controlling%20the%20electron%20energy%20distribution%20function%20via%20tailored%20surface%20topologies%20leads%20to%20a%20local%20increase%20of%20the%20metastable%20and%20atomic%20oxygen%20densities.%20A%20linear%20combination%20of%20trenches%20along%20the%20direction%20of%20the%20gas%20flow%20is%20found%20to%20result%20in%20an%20increase%20of%20the%20atomic%20oxygen%20density%20in%20the%20effluent%2C%20depending%20linearly%20on%20the%20number%20of%20trenches.%20These%20findings%20are%20explained%20by%20an%20enhanced%20Ohmic%20electric%20field%20inside%20each%20trench%2C%20originating%20from%20%28a%29%20the%20low%20electron%20density%2C%20and%2C%20consequently%2C%20the%20low%20plasma%20conductivity%20inside%20the%20trenches%2C%20and%20%28b%29%20the%20presence%20of%20a%20current%20focusing%20effect%20as%20a%20result%20of%20the%20electrode%20topology.%22%2C%22date%22%3A%222023-02-01%22%2C%22section%22%3A%22%22%2C%22partNumber%22%3A%22%22%2C%22partTitle%22%3A%22%22%2C%22DOI%22%3A%2210.1088%5C%2F1361-6595%5C%2Facb9b8%22%2C%22citationKey%22%3A%22%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fiopscience.iop.org%5C%2Farticle%5C%2F10.1088%5C%2F1361-6595%5C%2Facb9b8%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%220963-0252%2C%201361-6595%22%2C%22language%22%3A%22en%22%2C%22collections%22%3A%5B%5D%2C%22dateModified%22%3A%222023-03-04T09%3A42%3A29Z%22%7D%7D%2C%7B%22key%22%3A%22VN79VJN6%22%2C%22library%22%3A%7B%22id%22%3A2825793%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A7499565%2C%22username%22%3A%22manuel.schroeder.rub%22%2C%22name%22%3A%22%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fmanuel.schroeder.rub%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Schulenberg%20et%20al.%22%2C%22parsedDate%22%3A%222021-10-01%22%2C%22numChildren%22%3A2%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3B%26lt%3Bstrong%26gt%3BSchulenberg%26lt%3B%5C%2Fstrong%26gt%3B%2C%20D.%20A.%2C%20Korolov%2C%20I.%2C%20Donk%26%23xF3%3B%2C%20Z.%2C%20Derzsi%2C%20A.%2C%20%26amp%3B%20Schulze%2C%20J.%20%282021%29.%20Multi-diagnostic%20experimental%20validation%20of%201d3v%20PIC%5C%2FMCC%20simulations%20of%20low%20pressure%20capacitive%20RF%20plasmas%20operated%20in%20argon.%20%26lt%3Bi%26gt%3BPlasma%20Sources%20Science%20and%20Technology%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B30%26lt%3B%5C%2Fi%26gt%3B%2810%29%2C%20105003.%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Fac2222%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Fac2222%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3Ba%20title%3D%26%23039%3BCite%20in%20RIS%20Format%26%23039%3B%20class%3D%26%23039%3Bzp-CiteRIS%26%23039%3B%20data-zp-cite%3D%26%23039%3Bapi_user_id%3D2825793%26amp%3Bitem_key%3DVN79VJN6%26%23039%3B%20href%3D%26%23039%3Bjavascript%3Avoid%280%29%3B%26%23039%3B%26gt%3BCite%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Multi-diagnostic%20experimental%20validation%20of%201d3v%20PIC%5C%2FMCC%20simulations%20of%20low%20pressure%20capacitive%20RF%20plasmas%20operated%20in%20argon%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%20A%22%2C%22lastName%22%3A%22Schulenberg%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Ihor%22%2C%22lastName%22%3A%22Korolov%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Zolt%5Cu00e1n%22%2C%22lastName%22%3A%22Donk%5Cu00f3%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Aranka%22%2C%22lastName%22%3A%22Derzsi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julian%22%2C%22lastName%22%3A%22Schulze%22%7D%5D%2C%22abstractNote%22%3A%22The%20particle-in-cell%5C%2FMonte%20Carlo%20collisions%20%28PIC%5C%2FMCC%29%20simulation%20approach%20has%20become%20a%20standard%20and%20well-established%20tool%20in%20studies%20of%20capacitively%20coupled%20radio%20frequency%20%28RF%29%20plasmas.%20While%20code-to-code%20benchmarks%20have%20been%20performed%20in%20some%20cases%2C%20systematic%20experimental%20validations%20of%20such%20simulations%20are%20rare.%20In%20this%20work%2C%20a%20multi-diagnostic%20experimental%20validation%20of%201d3v%20electrostatic%20PIC%5C%2FMCC%20simulation%20results%20is%20performed%20in%20argon%20gas%20at%20pressures%20ranging%20from%201%20Pa%20to%20100%20Pa%20and%20at%20RF%20%2813.56%20MHz%29%20voltage%20amplitudes%20between%20150%20V%20and%20350%20V%20using%20a%20custom%20built%20geometrically%20symmetric%20reference%20reactor.%20The%20gas%20temperature%2C%20the%20electron%20density%2C%20the%20spatio-temporal%20electron%20impact%20excitation%20dynamics%2C%20and%20the%20ion%20flux-energy%20distribution%20at%20the%20grounded%20electrode%20are%20measured.%20In%20the%20simulations%2C%20the%20gas%20temperature%20and%20the%20electrode%20surface%20coefficients%20for%20secondary%20electron%20emission%20and%20electron%20reflection%20are%20input%20parameters.%20Experimentally%2C%20the%20gas%20temperature%20is%20found%20to%20increase%20significantly%20beyond%20room%20temperature%20as%20a%20function%20of%20pressure%2C%20whereas%20constant%20values%20for%20the%20gas%20temperature%20are%20typically%20assumed%20in%20simulations.%20The%20computational%20results%20are%20found%20to%20be%20sensitive%20to%20the%20gas%20temperature%20and%20to%20the%20choice%20of%20surface%20coefficients%2C%20especially%20at%20low%20pressures%2C%20at%20which%20non-local%20kinetic%20effects%20are%20prominent.%20By%20adjusting%20these%20input%20parameters%20to%20specific%20values%2C%20a%20good%20quantitative%20agreement%20between%20all%20measured%20and%20computationally%20obtained%20plasma%20parameters%20is%20achieved.%20If%20the%20gas%20temperature%20is%20known%2C%20surface%20coefficients%20for%20different%20electrode%20materials%20can%20be%20determined%20in%20this%20way%20by%20computationally%20assisted%20diagnostics.%20The%20results%20show%2C%20that%20PIC%5C%2FMCC%20simulations%20can%20describe%20experiments%20correctly%2C%20if%20appropriate%20values%20for%20the%20gas%20temperature%20and%20surface%20coefficients%20are%20used.%20Otherwise%20significant%20deviations%20can%20occur.%22%2C%22date%22%3A%222021-10-01%22%2C%22section%22%3A%22%22%2C%22partNumber%22%3A%22%22%2C%22partTitle%22%3A%22%22%2C%22DOI%22%3A%2210.1088%5C%2F1361-6595%5C%2Fac2222%22%2C%22citationKey%22%3A%22%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fiopscience.iop.org%5C%2Farticle%5C%2F10.1088%5C%2F1361-6595%5C%2Fac2222%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%220963-0252%2C%201361-6595%22%2C%22language%22%3A%22en%22%2C%22collections%22%3A%5B%5D%2C%22dateModified%22%3A%222022-01-04T09%3A51%3A51Z%22%7D%7D%2C%7B%22key%22%3A%22HI3H7PCL%22%2C%22library%22%3A%7B%22id%22%3A2825793%7D%2C%22meta%22%3A%7B%22lastModifiedByUser%22%3A%7B%22id%22%3A7499565%2C%22username%22%3A%22manuel.schroeder.rub%22%2C%22name%22%3A%22%22%2C%22links%22%3A%7B%22alternate%22%3A%7B%22href%22%3A%22https%3A%5C%2F%5C%2Fwww.zotero.org%5C%2Fmanuel.schroeder.rub%22%2C%22type%22%3A%22text%5C%2Fhtml%22%7D%7D%7D%2C%22creatorSummary%22%3A%22Daksha%20et%20al.%22%2C%22parsedDate%22%3A%222019-03-25%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%26gt%3BDaksha%2C%20M.%2C%20Derzsi%2C%20A.%2C%20Zaka-ul-Islam%2C%20M.%2C%20%26lt%3Bstrong%26gt%3BSchulenberg%26lt%3B%5C%2Fstrong%26gt%3B%2C%20D.%2C%20Berger%2C%20B.%2C%20Donk%26%23xF3%3B%2C%20Z.%2C%20%26amp%3B%20Schulze%2C%20J.%20%282019%29.%20Material%20dependent%20modeling%20of%20secondary%20electron%20emission%20coefficients%20and%20its%20effects%20on%20PIC%5C%2FMCC%20simulation%20results%20of%20capacitive%20RF%20plasmas.%20%26lt%3Bi%26gt%3BPlasma%20Sources%20Science%20and%20Technology%26lt%3B%5C%2Fi%26gt%3B%2C%20%26lt%3Bi%26gt%3B28%26lt%3B%5C%2Fi%26gt%3B%283%29%2C%20034002.%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Fab094f%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1088%5C%2F1361-6595%5C%2Fab094f%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3Ba%20title%3D%26%23039%3BCite%20in%20RIS%20Format%26%23039%3B%20class%3D%26%23039%3Bzp-CiteRIS%26%23039%3B%20data-zp-cite%3D%26%23039%3Bapi_user_id%3D2825793%26amp%3Bitem_key%3DHI3H7PCL%26%23039%3B%20href%3D%26%23039%3Bjavascript%3Avoid%280%29%3B%26%23039%3B%26gt%3BCite%26lt%3B%5C%2Fa%26gt%3B%20%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Material%20dependent%20modeling%20of%20secondary%20electron%20emission%20coefficients%20and%20its%20effects%20on%20PIC%5C%2FMCC%20simulation%20results%20of%20capacitive%20RF%20plasmas%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M%22%2C%22lastName%22%3A%22Daksha%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22A%22%2C%22lastName%22%3A%22Derzsi%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Mujahid%22%2C%22lastName%22%3A%22Zaka-ul-Islam%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22D%22%2C%22lastName%22%3A%22Schulenberg%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22B%22%2C%22lastName%22%3A%22Berger%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Z%22%2C%22lastName%22%3A%22Donk%5Cu00f3%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Julian%22%2C%22lastName%22%3A%22Schulze%22%7D%5D%2C%22abstractNote%22%3A%22The%20ion-induced%20secondary%20electron%20emission%20coef%5Cufb01cient%20%28%5Cu03b3%29%20is%20a%20vital%20parameter%20in%20the%20modeling%20of%20low%20temperature%20RF%20plasmas.%20Often%2C%20the%20value%20of%20%5Cu03b3%20drastically%20affects%20the%20electron%20power%20absorption%20dynamics%2C%20the%20plasma%20parameters%20and%20the%20quality%20of%20the%20separate%20control%20of%20ion%20%5Cufb02ux%20and%20mean%20ion%20energy%20at%20the%20electrodes.%20Experimental%20results%20for%20%5Cu03b3%20under%20plasma%20exposure%20are%20dif%5Cufb01cult%20to%20obtain.%20Therefore%2C%20%5Cu03b3%20is%20either%20assumed%20to%20be%20a%20constant%20chosen%20with%20some%20uncertainty%2C%20or%20is%20approximated%20as%20a%20quantity%20that%20is%20a%20function%20of%20the%20ion%20energy%20and%20cleanliness%20of%20the%20electrode%20surface.%20It%20is%20hypothesized%20that%20these%20assumptions%20are%20not%20valid%20for%20all%20materials%20and%20plasma%20conditions.%20In%20this%20work%2C%20Hagstrum%5Cu2019s%20theory%20on%20Auger%20emission%20is%20suggested%20as%20a%20robust%2C%20ab%20initio%20model%20for%20accurately%20predicting%20%5Cu03b3%20for%20metal%20surfaces%20with%20a%20wide%20range%20of%20surface%20conditions%20and%20for%20a%20variety%20of%20ion%20species.%20To%20demonstrate%20the%20effect%20of%20the%20choice%20of%20%5Cu03b3%20on%20modeling%20results%2C%20we%20carry%20out%20particle-in-cell%5C%2FMonte%20Carlo%20collision%20simulations%20of%2013.56%20MHz%2C%20single-frequency%20argon%20and%20helium%20capacitive%20discharges.%20Simulations%20are%20run%20assuming%20that%3A%20%28i%29%20%5Cu03b3%20is%20a%20constant%2C%20%28ii%29%20%5Cu03b3%20is%20an%20energy%20and%20surface%20condition%20dependent%20quantity%20that%20is%20independent%20of%20the%20electrode%20material%2C%20and%20%28iii%29%20%5Cu03b3%20is%20obtained%20from%20the%20ab%20initio%20model%20for%20different%20clean%20metals.%20The%20energy%20distribution%20of%20the%20emitted%20electrons%20resulting%20from%20Hagstrum%5Cu2019s%20theory%20is%20also%20implemented%20as%20a%20uniform%2C%20metal%20dependent%20distribution%20with%20physically%20accurate%20energy%20domain.%20It%20is%20found%20that%20this%20is%20important%20for%20some%20metals%20in%20both%20helium%20and%20argon.%20Lastly%2C%20it%20is%20observed%20that%2C%20depending%20on%20the%20assumed%20surface%20conditions%2C%20the%20plasma%20properties%20change%20dramatically.%20Based%20on%20these%20results%20we%20conclude%20that%20a%20realistic%2C%20material%20dependent%20implementation%20of%20%5Cu03b3%20is%20required%20to%20obtain%20realistic%20simulation%20results%20and%20that%20Hagstrum%5Cu2019s%20model%20suits%20this%20purpose.%22%2C%22date%22%3A%222019-03-25%22%2C%22section%22%3A%22%22%2C%22partNumber%22%3A%22%22%2C%22partTitle%22%3A%22%22%2C%22DOI%22%3A%2210.1088%5C%2F1361-6595%5C%2Fab094f%22%2C%22citationKey%22%3A%22%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fiopscience.iop.org%5C%2Farticle%5C%2F10.1088%5C%2F1361-6595%5C%2Fab094f%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%221361-6595%22%2C%22language%22%3A%22en%22%2C%22collections%22%3A%5B%5D%2C%22dateModified%22%3A%222021-07-18T09%3A39%3A15Z%22%7D%7D%5D%7D<\/span>\n\n\t\t\t\t
\n
\n
Schulenberg<\/strong>, D. A., Wang, X.-K., Vass, M., Korolov, I., Mussenbrock, T., & Schulze, J. (2026). Two-dimensional spatially resolved measurements of helium metastable densities by tunable diode laser absorption spectroscopy in atmospheric pressure RF plasma jets. Review of Scientific Instruments<\/i>, 97<\/i>(1), 013505. https:\/\/doi.org\/10.1063\/5.0292405<\/a> Cite<\/a> <\/div>\n<\/div>\n\t\t\t\t<\/div>\t\t\t\t
\n
\n
Klich, M., Schulenberg<\/strong>, D., Wilczek, S., Vass, M., Bolles, T., Korolov, I., Schulze, J., Mussenbrock, T., & Brinkmann, R. P. (2025). Electron dynamics of three distinct discharge modes of a cross-field atmospheric pressure plasma jet. Plasma Sources Science and Technology<\/i>, 34<\/i>(4), 045012. https:\/\/doi.org\/10.1088\/1361-6595\/adc7d8<\/a> Cite<\/a> <\/div>\n<\/div>\n\t\t\t\t<\/div>\t\t\t\t
\n
\n
Beckfeld, F., Masheyeva, R., Derzsi, A., Schulenberg<\/strong>, D. A., Korolov, I., Bock, C., Schulze, J., & Donk\u00f3, Z. (2025). Effective secondary electron yields for different surface materials in capacitively coupled plasmas. Plasma Sources Science and Technology<\/i>, 34<\/i>(3), 035009. https:\/\/doi.org\/10.1088\/1361-6595\/adb885<\/a> Cite<\/a> <\/div>\n<\/div>\n\t\t\t\t<\/div>\t\t\t\t
\n
\n
Vass, M., Schulenberg<\/strong>, D., Donk\u00f3, Z., Hartmann, P., Steuer, D., B\u00f6ke, M., Schulz-von Der Gathen, V., Korolov, I., Mussenbrock, T., & Schulze, J. (2024). Energy efficiency of reactive species generation in radio frequency atmospheric pressure plasma jets driven by tailored voltage waveforms in a He\/O2<\/sub> mixture. Plasma Sources Science and Technology<\/i>, 33<\/i>(11), 11LT01. https:\/\/doi.org\/10.1088\/1361-6595\/ad8ae7<\/a> Cite<\/a> <\/div>\n<\/div>\n\t\t\t\t<\/div>\t\t\t\t
\n
\n
Schulenberg<\/strong>, D. A., Vass, M., Klich, M., Donk\u00f3, Z., Klotz, J., Bibinov, N., Mussenbrock, T., & Schulze, J. (2024). Mode Transition Induced by Gas Heating Along the Discharge Channel in Capacitively Coupled Atmospheric Pressure Micro Plasma Jets. Plasma Chemistry and Plasma Processing<\/i>. https:\/\/doi.org\/10.1007\/s11090-023-10444-6<\/a> Cite<\/a> <\/div>\n<\/div>\n\t\t\t\t<\/div>\t\t\t\t
\n
\n
Vass, M., Schulenberg<\/strong>, D., Donk\u00f3, Z., Korolov, I., Hartmann, P., Schulze, J., & Mussenbrock, T. (2024). A new 2D fluid-MC hybrid approach for simulating nonequilibrium atmospheric pressure plasmas: density distribution of atomic oxygen in radio-frequency plasma jets in He\/O 2<\/sub> mixtures. Plasma Sources Science and Technology<\/i>, 33<\/i>(1), 015012. https:\/\/doi.org\/10.1088\/1361-6595\/ad1f37<\/a> Cite<\/a> <\/div>\n<\/div>\n\t\t\t\t<\/div>\t\t\t\t
\n
\n
Donk\u00f3, Z., Hartmann, P., Korolov, I., Schulenberg<\/strong>, D., Rohr, S., Rauf, S., & Schulze, J. (2023). Metastable argon atom kinetics in a low-pressure capacitively coupled radio frequency discharge. Plasma Sources Science and Technology<\/i>, 32<\/i>(6), 065002. https:\/\/doi.org\/10.1088\/1361-6595\/acd6b5<\/a> Cite<\/a> <\/div>\n<\/div>\n\t\t\t\t<\/div>\t\t\t\t
\n
\n
Liu, Y., Vass, M., H\u00fcbner, G., Schulenberg<\/strong>, D., Hemke, T., Bischoff, L., Chur, S., Steuer, D., Golda, J., B\u00f6ke, M., Schulze, J., Korolov, I., & Mussenbrock, T. (2023). Local enhancement of electron heating and neutral species generation in radio-frequency micro-atmospheric pressure plasma jets: the effects of structured electrode topologies. Plasma Sources Science and Technology<\/i>, 32<\/i>(2), 025012. https:\/\/doi.org\/10.1088\/1361-6595\/acb9b8<\/a> Cite<\/a> <\/div>\n<\/div>\n\t\t\t\t<\/div>\t\t\t\t
\n
\n
Schulenberg<\/strong>, D. A., Korolov, I., Donk\u00f3, Z., Derzsi, A., & Schulze, J. (2021). Multi-diagnostic experimental validation of 1d3v PIC\/MCC simulations of low pressure capacitive RF plasmas operated in argon. Plasma Sources Science and Technology<\/i>, 30<\/i>(10), 105003. https:\/\/doi.org\/10.1088\/1361-6595\/ac2222<\/a> Cite<\/a> <\/div>\n<\/div>\n\t\t\t\t<\/div>\t\t\t\t
\n
\n
Daksha, M., Derzsi, A., Zaka-ul-Islam, M., Schulenberg<\/strong>, D., Berger, B., Donk\u00f3, Z., & Schulze, J. (2019). Material dependent modeling of secondary electron emission coefficients and its effects on PIC\/MCC simulation results of capacitive RF plasmas. Plasma Sources Science and Technology<\/i>, 28<\/i>(3), 034002. https:\/\/doi.org\/10.1088\/1361-6595\/ab094f<\/a> Cite<\/a> <\/div>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>","protected":false},"excerpt":{"rendered":"

Researcher AddressRuhr-Uni\u00adver\u00adsi\u00adt\u00e4t Bo\u00adchumFakult\u00e4t f\u00fcr Elektrotechnik und InformationstechnikAngewandte Elektrodynamik und PlasmatechnikUni\u00adver\u00adsi\u00adt\u00e4ts\u00adstra\u00ad\u00dfe 150D-44801 Bo\u00adchum, Germany RoomID 1\/118 Phone+49 234 32 23122 Emailschulenberg(at)aept.rub.de Publications<\/p>","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-438","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/aept.blogs.ruhr-uni-bochum.de\/de\/wp-json\/wp\/v2\/pages\/438","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aept.blogs.ruhr-uni-bochum.de\/de\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/aept.blogs.ruhr-uni-bochum.de\/de\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/aept.blogs.ruhr-uni-bochum.de\/de\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/aept.blogs.ruhr-uni-bochum.de\/de\/wp-json\/wp\/v2\/comments?post=438"}],"version-history":[{"count":2,"href":"https:\/\/aept.blogs.ruhr-uni-bochum.de\/de\/wp-json\/wp\/v2\/pages\/438\/revisions"}],"predecessor-version":[{"id":441,"href":"https:\/\/aept.blogs.ruhr-uni-bochum.de\/de\/wp-json\/wp\/v2\/pages\/438\/revisions\/441"}],"wp:attachment":[{"href":"https:\/\/aept.blogs.ruhr-uni-bochum.de\/de\/wp-json\/wp\/v2\/media?parent=438"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}