Measuring space charge and electric field in axisymmetric dielectric barrier discharge using EFISH technique.

ABSTRACT: We investigated the dynamic interactions between electric fields and space charges within an axisymmetric dielectric barrier discharge (DBD) configuration. Employing a square-wave AC, the DBD setup ensured spatial and temporal consistency in microdischarge occurrences. The Electric Field Induced Second Harmonic Generation (EFISH) technique was utilized to capture electric fields and space charge distributions, with special emphasis on the theoretical deduction of space charges from Gauss's Law. After a microdischarge occurred, the measured electric fields diminished due to the destructive superposition of external electric fields and the fields induced by space charges. This reduction in electric field intensity prevented subsequent microdischarges from occurring. However, when the polarit

SUBMITTER: Park J 

PROVIDER: S-EPMC11914219 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature