Electrooptic measurement of non-symmetrical electric field distribution in a dielectric liquid

We carried out the measurement of the three-dimensional nonuniform electric field distribution in a non-symmetrical electrode system. An optical system was composed of a He-Ne laser, a polarizer, a quarter-wave plate, an experimental cell, an analyzer, and a photo-detector. When a negative high voltage pulse was applied to the electrodes system, the light intensity transmitted to the analyzer was measured by the photo-detector. The intensity measurement was carried out at many points in each direction from 0 to /spl pi/. From the obtained data, the electric field distribution was reconstructed with algebraic reconstruction technique (ART) in computed tomography (CT) technique. The measured distribution was interesting.