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.
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Research Article| December 19 2003
Channeling of an Ionizing Electrical Streamer by a Laser Beam
David W. Koopman;
David W. Koopman, T. D. Wilkerson; Channeling of an Ionizing Electrical Streamer by a Laser Beam. J. Appl. Phys. 1 April 1971; 42 (5): 1883–1886. https://doi.org/10.1063/1.1660462
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