Development of long gap discharges guided by a pulsed CO2laser
- 14 August 1993
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 26 (8) , 1244-1252
- https://doi.org/10.1088/0022-3727/26/8/014
Abstract
The mechanism of the guidance effect of laser plasmas on electrical discharges has been studied. A 45 J CO2 laser pulse produces many spherical plasmas over a gap of up to 2 m, and the laser-guided discharge is formed along the plasma by the application of a lightning impulse voltage. Unusual properties of the laser guided discharge are obtained from streak photographs of the discharge development. The laser produced plasmas guide streamers and leaders from a negative electrode more effectively than from a positive electrode. The discharge development from the negative electrode plays an important role in the guidance effect.Keywords
This publication has 8 references indexed in Scilit:
- Laser Triggered Lightning.The Review of Laser Engineering, 1991
- Study of triggering lightning by using TEA CO2 laser.The Review of Laser Engineering, 1988
- Laser Interferometric Measurements of a Laser-Preionization-Triggered Spark ColumnIEEE Transactions on Plasma Science, 1986
- Fundamental processes in laser-triggered electrical breakdown of gasesJournal of Physics D: Applied Physics, 1984
- The Physics of the Dense Z-Pinch in Theory and in Experiment With Application to Fusion ReactorPhysica Scripta, 1982
- Electrical Discharges Guided by Pulsed-Laser RadiationPhysical Review Letters, 1978
- Propagation of Pinched Electron Beams for Pellet FusionPhysical Review Letters, 1977
- Formation and guiding of high-velocity electrical streamers by laser-induced ionizationJournal of Applied Physics, 1973