Skip to Main content Skip to Navigation
New interface
Journal articles

Cumulative air density depletion during high repetition rate filamentation of femtosecond laser pulses: Application to electric discharge triggering

Pierre Walch 1, * Benoît Mahieu 1 Leonid Arantchouk 1 Yves-Bernard André 1 André Mysyrowicz 1 Aurélien Houard 1 
* Corresponding author
1 ILM - Interaction Laser-Matière
LOA - Laboratoire d'optique appliquée
Abstract : We study the influence of the laser repetition rate on the generation of low-density channels of air left in the path of femtosecond laser filament. At high repetition rates, we observe the formation of a permanent millimeter-wide low-density channel that exceeds the depth and width of the transient depletion due to a single filament. We also show that this permanent cumulative effect decreases the breakdown voltage between two electrodes and can alter the path of the discharge. By comparing this effect in air and in pure nitrogen, we show that an accumulation of O−2 ions contributes to the reduction in the breakdown voltage.
Document type :
Journal articles
Complete list of metadata

https://hal-ensta-paris.archives-ouvertes.fr/hal-03510763
Contributor : Aurélien Houard Connect in order to contact the contributor
Submitted on : Tuesday, January 4, 2022 - 4:06:32 PM
Last modification on : Wednesday, May 11, 2022 - 3:22:05 PM

File

T82O13-5.0077635.pdf
Publication funded by an institution

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Collections

Citation

Pierre Walch, Benoît Mahieu, Leonid Arantchouk, Yves-Bernard André, André Mysyrowicz, et al.. Cumulative air density depletion during high repetition rate filamentation of femtosecond laser pulses: Application to electric discharge triggering. Applied Physics Letters, 2021, 119 (26), pp.262101. ⟨10.1063/5.0077635⟩. ⟨hal-03510763⟩

Share

Metrics

Record views

33

Files downloads

48