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arXiv · 2410.08765

Measurement of the electric field distribution in streamer discharges

Yihao Guo·Anne Limburg·Jesse Laarman·Jannis Teunissen·Sander Nijdam
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Abstract

Using electric field induced second harmonic generation (E-FISH), we performed direction-resolved absolute electric field measurements on single-channel streamer discharges in 70 mbar (7 kPa) air with 0.2 mm and 2 ns resolutions. In order to obtain the absolute (local) electric field, we developed a deconvolution method taking into account the phase variations of E-FISH. The acquired field distribution shows good agreement with the simulation results under the same conditions, in direction, magnitude and in shape. This is the first time that E-FISH is applied to streamers of this size (> 0.5cm radius), crossing a large gap. Achieving these high resolution electric field measurements benefits further understanding of streamer discharges and enables future use of E-FISH on cylindrically symmetric (transient) electric field distributions.

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Yihao Guo, Anne Limburg, Jesse Laarman, Jannis Teunissen, Sander Nijdam. 2024-10-11. Measurement of the electric field distribution in streamer discharges. https://doi.org/10.1103/physrevresearch.7.013051

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