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Hybrid RF/DC plasma torch for generation of singlet oxygen in discharge oxygen-iodine laser

  1. 1.
    SYSNO ASEP0355773
    Document TypeC - Proceedings Paper (int. conf.)
    R&D Document TypeConference Paper
    TitleHybrid RF/DC plasma torch for generation of singlet oxygen in discharge oxygen-iodine laser
    Author(s) Schmiedberger, Josef (FZU-D) RID
    Rohlena, Karel (FZU-D) RID
    Gregor, Jan (UFP-V)
    Křenek, Petr (UFP-V) RID
    Jirásek, Vít (FZU-D) RID
    Čenský, Miroslav (FZU-D) RID
    Kodymová, Jarmila (FZU-D) RID
    Source Title18th International Symposium on Gas Flow and Chemical lasers & High Power Lasers. - Bellingham : SPIE, 2010 / Dreischuh T. ; Atanasov P.A. ; Sabotinov N.V. - ISSN 0277-786X - ISBN 978-0-8194-8242-6
    Pages77510g/1-77510g/9
    Number of pages9 s.
    Publication formCD - CD
    ActionInternational Symposium on Gas Flow and Chemical lasers and High Power Lasers /18./
    Event date30.08.2010-03.09.2010
    VEvent locationSofia
    CountryBG - Bulgaria
    Event typeWRD
    Languageeng - English
    CountryUS - United States
    Keywordsdischarge oxygen-iodine laser ; DOIL ; singlet oxygen generation ; RF plasma jet ; arc plasma jet ; hybrid plasma jet
    Subject RIVBH - Optics, Masers, Lasers
    R&D ProjectsGA202/07/0323 GA ČR - Czech Science Foundation (CSF)
    CEZAV0Z10100523 - FZU-D (2005-2011)
    AV0Z20430508 - UFP-V (2005-2011)
    UT WOS000287923600015
    DOI10.1117/12.880937
    AnnotationLatest advances in development of a hybrid RF/DC plasma jet generator of singlet oxygen for a discharge oxygen-iodine laser are presented. This novel apparatus is based on a fast mixing of hybrid Ar+He plasma jet of DC electric arc sustained by an RF discharge with an injected neutral O2+He+NO stream. A stable high-pressure hybrid RF/DC plasmatron with a diffusive arc mode near the anode side (assisted by a plasma anode) was demonstrated experimentally in the mixture Ar:He = ~9.84:5 mmol/s at a power level of 610 W (RF power 490 W and DC arc power 120 W) and at a pressure of 165 Torr. The specific energy of the plasma jet was 41 J/mmol. A generation of singlet oxygen was performed by a laterally symmetric injection of neutral mixture O2:He:NO = 1.5:2.44:0.22 mmol/s into the plasma jet of the hybrid RF/DC plasmatron. The estimated yield of singlet oxygen O2(1Δ) was ~5% at a pressure of 10.5 Torr.
    WorkplaceInstitute of Physics
    ContactKristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
    Year of Publishing2012
Number of the records: 1  

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