Electric field in a plasma channel in a high-pressure nanosecond discharge in hydrogen: A coherent anti-stokes Raman scattering study

S. Yatom, S. Tskhai, Ya E. Krasik

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Abstract

Experimental results of a study of the electric field in a plasma channel produced during nanosecond discharge at a H2 gas pressure of (2-3)×105 Pa by the coherent anti-Stokes scattering method are reported. The discharge was ignited by applying a voltage pulse with an amplitude of ∼100 kV and a duration of ∼5 ns to a blade cathode placed at a distance of 10 and 20 mm from the anode. It was shown that this type of gas discharge is characterized by the presence of an electric field in the plasma channel with root-mean-square intensities of up to 30 kV/cm. Using polarization measurements, it was found that the direction of the electric field is along the cathode-anode axis.

Original languageEnglish (US)
Article number255001
JournalPhysical review letters
Volume111
Issue number25
DOIs
StatePublished - Dec 18 2013
Externally publishedYes

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