Interpretation of artifacts in Fourier transform infrared spectra of atmospheric pressure dielectric barrier discharges: relationship with the plasma frequency between 300 Hz and 15 kHz
| Autor: | Peter R. Griffiths, Gaétan Laroche, Pierre Audet, Natalia Milaniak, Françoise Massines |
|---|---|
| Přispěvatelé: | Procédés, Matériaux et Energie Solaire (PROMES), Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS), Université Laval [Québec] (ULaval), CHU de Québec–Université Laval, Griffiths Consulting, LLC |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Acoustics and Ultrasonics high-voltage plasma excitation frequency Atmospheric-pressure plasma 02 engineering and technology Dielectric barrier discharge Dielectric dielectric barrier discharge Plasma oscillation interferogram sampling frequency 01 natural sciences Interpretation (model theory) [CHIM.ANAL]Chemical Sciences/Analytical chemistry [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] 0103 physical sciences [CHIM]Chemical Sciences Fourier transform infrared spectroscopy ComputingMilieux_MISCELLANEOUS 010302 applied physics Atmospheric pressure [SPI.PLASMA]Engineering Sciences [physics]/Plasmas 021001 nanoscience & nanotechnology Condensed Matter Physics atmospheric pressure plasma Fourier transform infrared spectra Surfaces Coatings and Films Electronic Optical and Magnetic Materials Atomic physics 0210 nano-technology |
| Zdroj: | Journal of Physics D: Applied Physics Journal of Physics D: Applied Physics, IOP Publishing, 2019, 53 (1), pp.015201. ⟨10.1088/1361-6463/ab4777⟩ Journal of Physics D: Applied Physics, IOP Publishing, 2020, 53 (1), pp.015201. ⟨10.1088/1361-6463/ab4777⟩ |
| ISSN: | 0022-3727 1361-6463 |
| Popis: | International audience; This article describes the occurrence of a phenomenon that is observed while recording mid-infrared (4000–700 cm−1) absorption spectra of dielectric barrier discharges sustained at frequencies ranging from 300 Hz to 15 kHz. This phenomenon is observed as the presence of very sharp spikes in the spectrum, for which the wavenumber depends on both the high voltage frequency used to generate the discharge and the velocity of the moving mirror of the interferometer (which in turn determines the interferogram sampling frequency). While it is well known that the consumption of gas precursor within plasmas can be followed, we demonstrate that Fourier transform infrared spectroscopy also makes it possible to monitor frequencies and coupling of excitation mechanisms occurring in the plasma. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|