Channeling of an Ionizing Electrical Streamer by a Laser Beam
- 1 April 1971
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 42 (5), 1883-1886
- https://doi.org/10.1063/1.1660462
Abstract
Long electrical spark discharges have been directed through air along predetermined paths defined by a concentrated laser beam. At apparent optical power densities of 50–100 giga W/cm2, 35‐nsec half‐width laser pulses at 10 600 Å have been effective in channeling streamer discharges from a 350‐kV positively charged electrode for distances up to 28 cm in a total streamer length of 71 cm. The average E field required to obtain a discharge between electrodes was reduced from 7.3 to 5.5 kV/cm with the laser powers employed.Keywords
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