Maximizing energy deposition by shaping few-cycle laser pulses
Optics
2018-06-26 v1
Abstract
We experimentally investigate the impact of pulse shape on the dynamics of laser-generated plasma in rare gases. Fast-rising triangular pulses with a slower decay lead to early ionization of the air and depose energy more efficiently than their temporally reversed counterparts. As a result, in both argon and krypton, the induced shockwave as well as the plasma luminescence are stronger. This is due to an earlier availability of free electrons to undergo inverse Bremsstrahlung on the pulse trailing edge. Our results illustrate the ability of adequately tailored pulse shapes to optimize the energy deposition in gas plasmas.
Cite
@article{arxiv.1806.08994,
title = {Maximizing energy deposition by shaping few-cycle laser pulses},
author = {Julien Gateau and Alexander Patas and Mary Matthews and Sylvain Hermelin and Albrecht Lindinger and Jérôme Kasparian and Jean-Pierre Wolf},
journal= {arXiv preprint arXiv:1806.08994},
year = {2018}
}
Comments
11 pages, 6 figures