2024
DOI: 10.1088/1361-6595/ad4236
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Influence of the RF voltage amplitude on the space- and time-resolved properties of RF–LF dielectric barrier discharges in α–γ mode

Raphaël Robert,
Nader Sadeghi,
Gerjan Hagelaar
et al.

Abstract: This work reports the results of an experimental and modelling study on dual-frequency Ar-NH3 dielectric barrier discharges (DBD) exhibiting the α – γ transition. A combination of space- and time-resolved optical absorption and emission spectroscopy is used to record spatio-temporal mappings of the Ar metastable number density, Ar 750.4 nm line emission intensity, and electron-Ar Bremsstrahlung continuum emission intensity. With the increase of the RF voltage amplitude in a 50 kHz-5 MHz DBD, maximum population… Show more

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