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Research on the conversion effects of pulsed laser plasma electric signal

Published online by Cambridge University Press:  09 March 2009

Qihong Lou
Qihong Lou
Affiliation:
Shanghai Institute of Optics and Fine Mechanics, Academia Sinica, P.O. Box 8211, Shanghai, China
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Abstract

By focusing the TEA CO2 laser pulse onto a metal target in the vacuum cell, the backward jet of plasma produced by the laser pulse can create an electric pulse between the target and the cell wall. The effect of laser beam focusing parameter and vacuum condition on the conversion efficiency are investigated experimentally. The maximum output voltage is more than 300 V when the peak power density at the target surface is 1.4 × 109 W/cm2. The velocity of the plasma expansion is obtained by using separated collecting electrodes.

Type
Research Article
Information
Laser and Particle Beams , Volume 8 , Issue 1-2 , January 1990 , pp. 343 - 347
Copyright
Copyright © Cambridge University Press 1990

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References

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