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Journal articles
Plasma dynamics of a laser filamentation-guided spark
Abstract : We investigate experimentally the plasma dynamics of a centimeter-scale, laser filamentation-guided spark discharge. Using electrical and optical diagnostics to study monopolar discharges with varying current pulses we show that plasma decay is dominated by free electron recombination if the current decay time is shorter than the recombination characteristic time. In the opposite case, the plasma electron density closely follows the current evolution. We demonstrate that this criterion holds true in the case of damped AC sparks, and that alternative current is the best option to achieve a long plasma lifetime for a given peak current.
Cited literature [21 references]
https://hal-ensta-paris.archives-ouvertes.fr//hal-01385550
Contributor : Aurélien Houard <>
Submitted on : Friday, October 21, 2016 - 3:35:28 PM
Last modification on : Tuesday, March 16, 2021 - 3:44:42 PM
Contributor : Aurélien Houard <>
Submitted on : Friday, October 21, 2016 - 3:35:28 PM
Last modification on : Tuesday, March 16, 2021 - 3:44:42 PM
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1608.07677v1.pdf
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