Electric current interruption in the plasma formed by UV laser radiation and application of this effect in inductive energy storage

Victor F. Tarasenko; Alexei N. Panchenko; Sergey I. Yakovlenko

doi:10.1117/12.407365

16 August 2000 Electric current interruption in the plasma formed by UV laser radiation and application of this effect in inductive energy storage

Victor F. Tarasenko, Alexei N. Panchenko, Sergey I. Yakovlenko

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Proceedings Volume 4065, High-Power Laser Ablation III; (2000) https://doi.org/10.1117/12.407365
Event: High-Power Laser Ablation, 2000, Santa Fe, NM, United States

Abstract

In the present report, plasma formed on the surface of metals and dielectric materials under the action of XeCl and KrCl lasers is studied. Plasma formation thresholds and plasma expansion velocities are measured. It was shown that long-lived plasma objects are formed near a target in the atmosphere of Xe or air at pressure 0.1 - 1 atm. Duration of luminescence of the plasma objects was maximal in xenon. Non-symmetric current passing through the laser plasma and the current interruption were obtained. The interruption time was as short as 10 ns while the plasma resistance increases with the rate up to 10¹⁰ Ohm/s. It is shown that the interruption rate increases when plasma of elements with small atomic weight is used and at higher rice-time of the current before its interruption. It was found that the plasma ionization degree is saturated before the interruption. The interruption effect was used for development of generators with inductive energy storages. Generator with a plasma erosion opening switch with opening current of 10 kA operating at pulse repetition rate up to several Hz was used for excitation of pulsed lasers. Using the generator, laser action on nitrogen and XeCl molecules and atomic transition of Ne was obtained.

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Victor F. Tarasenko, Alexei N. Panchenko, and Sergey I. Yakovlenko "Electric current interruption in the plasma formed by UV laser radiation and application of this effect in inductive energy storage", Proc. SPIE 4065, High-Power Laser Ablation III, (16 August 2000); https://doi.org/10.1117/12.407365

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KEYWORDS

Plasma

Pulsed laser operation

Metals

Xenon

Gas lasers

Capacitors

Electrodes

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