Dual-scale turbulence in filamenting laser beams at high average power
Optics
2016-10-13 v1
Abstract
We investigate the self-induced turbulence of high repetition rate laser filaments over a wide range of average powers (1 mW to 100 W) and its sensitivity to external atmospheric turbulence. Although both externally-imposed and self-generated turbulences can have comparable magnitudes, they act on different temporal and spatial scales. While the former drives the shot-to-shot motion at the millisecond time scale, the latter acts on the 0.5 s scale. As a consequence, their effects are decoupled, preventing beam stabilization by the thermally-induced low-density channel produced by the laser filaments.
Cite
@article{arxiv.1610.03510,
title = {Dual-scale turbulence in filamenting laser beams at high average power},
author = {Elise Schubert and Lorena de la Cruz and Denis Mongin and Jérôme Kasparian and Jean-Pierre Wolf and Sandro Klingebiel and Marcel Schultze and Thomas Metzger and Knut Michel},
journal= {arXiv preprint arXiv:1610.03510},
year = {2016}
}
Comments
11 pages, 5 figures