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Laser-produced dense plasma in extremely high pressure gas and its application to a plasma-bridged gap switch

Published online by Cambridge University Press:  09 March 2009

J. Yamada  and
T. Okuda
J. Yamada
Affiliation:
Department of Electronics, Aichi Institute of Technology, Yakusa, Toyoda 470-03, Japan
T. Okuda
Affiliation:
Department of Electronics, Aichi Institute of Technology, Yakusa, Toyoda 470-03, Japan
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Abstract

When an extremely high pressure gas is irradiated by an intense laser light, a dense plasma produced at the focal spot moves towards the focusing lens with a high velocity. Making use of this phenomenon, a new plasma-bridged gap switch is proposed and its switching characteristics is experimentally examined. From the experiments, it is confirmed that the switching time is almost constant with the applied voltage only when the focal spot is just on the positive electrode, indicating that the bridging of gap is caused by the laser light.

Type
Research Article
Information
Laser and Particle Beams , Volume 7 , Issue 3 , August 1989 , pp. 531 - 537
Copyright
Copyright © Cambridge University Press 1989

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References

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