Experimental study of spontaneous electric field generated by a laser plasma
- 6 July 1998
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 73 (1) , 25-27
- https://doi.org/10.1063/1.121711
Abstract
We report investigations of a space-time structure of the electric field of laser plasma from a solid target. An ArF excimer laser with an intensity of I≅108 W/cm2 was used to produce the plasma on various targets placed in air at atmospheric pressure. A strong difference in both the amplitude (by more than 1–2 orders of magnitude) and the structure of the electric field for conductive and dielectric targets has been observed. The field distribution for a conductive target was found to correspond to a dipole configuration of charges in the laser plasma, while for the dielectric target a quadrupole configuration was revealed. Possible explanations and applications of the observed effect are discussed.Keywords
This publication has 7 references indexed in Scilit:
- Electric fields of a laser spark produced by radiation with various parametersQuantum Electronics, 1997
- Space-time structure of the magnetic field of a laser plasma and methods for its enhancement outside the plasmaPhysical Review E, 1997
- New method of magnetic field and current generation outside laser plasmaApplied Physics Letters, 1996
- Review on spontaneous magnetic fields in laser-produced plasmas: Phenomena and measurementsLaser and Particle Beams, 1991
- Near-field measurements of subnanosecond-created laser plasmasJournal of Applied Physics, 1975
- Laser spark in gasesSoviet Physics Uspekhi, 1974
- Electromagnetic Radiation from Detonating Solid ExplosivesJournal of Applied Physics, 1965