Channeling of an Ionizing Electrical Streamer by a Laser Beam

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 po...

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Published in:Journal of applied physics 1971-01, Vol.42 (5), p.1883-1886
Main Authors: Koopman, David W., Wilkerson, T. D.
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Language:English
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container_end_page 1886
container_issue 5
container_start_page 1883
container_title Journal of applied physics
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creator Koopman, David W.
Wilkerson, T. D.
description 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.
doi_str_mv 10.1063/1.1660462
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title Channeling of an Ionizing Electrical Streamer by a Laser Beam
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