Optimal laser pulse energy partitioning for air ionization
Plasma Physics
2022-12-21 v3 Optics
Abstract
We investigate the pulse partitioning of a 6.3 mJ, 450 fs pulse at 1030 nm to produce plasma channels. At such moderate energies, splitting the energy into several sub-pulses reduces the ionization efficiency and thus does not extend the plasma lifetime. We numerically show that when sufficient energy to produce multifilamentation is available, splitting the pulse temporally in a pulse train increases the gas temperature compared to a filament bundle of the same energy. This could improve the mean free path of the free electrons, therefore enhancing the efficiency of discharge triggering.
Keywords
Cite
@article{arxiv.1608.06755,
title = {Optimal laser pulse energy partitioning for air ionization},
author = {Elise Schubert and Jean-Gabriel Brisset and Mary Matthews and Antoine Courjaud and Jérôme Kasparian and Jean-Pierre Wolf},
journal= {arXiv preprint arXiv:1608.06755},
year = {2022}
}
Comments
Correcting typo in Eq. (12) and unit of $\beta_{ep}$ in Table I