Determination of Highly Transient Electric Field in Water Using the Kerr Effect with Picosecond Resolution
Abstrak
This study utilizes the Kerr effect in the analysis of a pulsed electric field (intensity ~10<sup>8</sup> V/m, limited by the liquid dielectric strength) in deionized water at the sub-nanosecond time scale. The results provide information about voltage waveforms at the field-producing anode (160 kV peak, d<i>u</i>/d<i>t</i> > 70 kV/ns). The analysis is based on detecting the phase shifts between measured and reference pulsed laser beams (pulse width, 35 ps; wavelength, 532 nm) using a Mach–Zehnder interferometer. The signal-to-noise ratio of the detected phase shift is maximized by an appropriate geometry of the field-producing anode, which creates a correctly oriented strong electric field along the interaction path and simultaneously does not electrically load the feeding transmission line. The described method has a spatial resolution of ~1 μm, and its time resolution is determined by the laser pulse duration.
Topik & Kata Kunci
Penulis (5)
Petr Hoffer
Václav Prukner
Garima Arora
Radek Mušálek
Milan Šimek
Akses Cepat
- Tahun Terbit
- 2024
- Sumber Database
- DOAJ
- DOI
- 10.3390/plasma7020018
- Akses
- Open Access ✓