Formation of spatially periodic fronts of high-energy electrons in a radio-frequency driven surface microdischarge

J. Dedrick; D. O'Connell; T. Gans; R. W. Boswell; C. Charles

doi:10.1063/1.4789371

Formation of spatially periodic fronts of high-energy electrons in a radio-frequency driven surface microdischarge

J. Dedrick^*, D. O'Connell, T. Gans, R. W. Boswell, C. Charles

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The generation of spatially periodic fronts of high-energy electrons (>13.48 eV) has been investigated in a radio-frequency surface microdischarge in atmospheric-pressure argon. Optical emission spectroscopy is used to study the Ar I 2 p 1 - 1 s 2 transition surrounding a filamentary microdischarge, both spatially and with respect to the phase of the applied voltage. The formation of excitation fronts, which remain at a constant propagation distance throughout the RF cycle and for the duration of the pulse, may be explained by a localized increase in the electric field at the tip of surface-charge layers that are deposited during the extension phase.

Original language	English
Article number	034109
Journal	Applied Physics Letters
Volume	102
Issue number	3
DOIs	https://doi.org/10.1063/1.4789371
Publication status	Published - 21 Jan 2013

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abstract = "The generation of spatially periodic fronts of high-energy electrons (>13.48 eV) has been investigated in a radio-frequency surface microdischarge in atmospheric-pressure argon. Optical emission spectroscopy is used to study the Ar I 2 p 1 - 1 s 2 transition surrounding a filamentary microdischarge, both spatially and with respect to the phase of the applied voltage. The formation of excitation fronts, which remain at a constant propagation distance throughout the RF cycle and for the duration of the pulse, may be explained by a localized increase in the electric field at the tip of surface-charge layers that are deposited during the extension phase.",

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AU - Dedrick, J.

AU - O'Connell, D.

AU - Gans, T.

AU - Boswell, R. W.

AU - Charles, C.

PY - 2013/1/21

Y1 - 2013/1/21

N2 - The generation of spatially periodic fronts of high-energy electrons (>13.48 eV) has been investigated in a radio-frequency surface microdischarge in atmospheric-pressure argon. Optical emission spectroscopy is used to study the Ar I 2 p 1 - 1 s 2 transition surrounding a filamentary microdischarge, both spatially and with respect to the phase of the applied voltage. The formation of excitation fronts, which remain at a constant propagation distance throughout the RF cycle and for the duration of the pulse, may be explained by a localized increase in the electric field at the tip of surface-charge layers that are deposited during the extension phase.

AB - The generation of spatially periodic fronts of high-energy electrons (>13.48 eV) has been investigated in a radio-frequency surface microdischarge in atmospheric-pressure argon. Optical emission spectroscopy is used to study the Ar I 2 p 1 - 1 s 2 transition surrounding a filamentary microdischarge, both spatially and with respect to the phase of the applied voltage. The formation of excitation fronts, which remain at a constant propagation distance throughout the RF cycle and for the duration of the pulse, may be explained by a localized increase in the electric field at the tip of surface-charge layers that are deposited during the extension phase.

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VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 3

M1 - 034109

ER -

Formation of spatially periodic fronts of high-energy electrons in a radio-frequency driven surface microdischarge

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