Subcritical microwave streamer discharge at the surface of a polymer foil

An innovative type of subcritical streamer discharge, generated by bursts of focused microwave (MW) radiation in transverse electromagnetic mode with wavelength of 10 cm, pulse duration of 40 μs, and intensity of 5.6×104 W/cm2, was initiated at the surface of a polymer foil at 420 Torr in air. The M...

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Bibliographic Details
Published in:Applied physics letters 2002-09, Vol.81 (11), p.1964-1965
Main Authors: Popović, S., Vušković, L., Esakov, I. I., Gratchev, L. P., Khodataev, K. V.
Format: Article
Language:English
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Summary:An innovative type of subcritical streamer discharge, generated by bursts of focused microwave (MW) radiation in transverse electromagnetic mode with wavelength of 10 cm, pulse duration of 40 μs, and intensity of 5.6×104 W/cm2, was initiated at the surface of a polymer foil at 420 Torr in air. The MW field of a quasioptical beam was three times lower than the critical breakdown field. Exposure of a polymer foil to the discharge caused a transition from hydrophobicity to hydrophilicity.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1506787