Laser Pulse Sharpening with Electromagnetically Induced Transparency in Plasma
Optics
2017-07-20 v2 Plasma Physics
Abstract
We propose a laser-controlled plasma shutter technique to generate sharp laser pulses using a process analogous to electromagnetically-induced transparency in atoms. The shutter is controlled by a laser with moderately strong intensity, which induces a transparency window below the cutoff frequency, and hence enables propagation of a low frequency laser pulse. Numerical simulations demonstrate it is possible to generate a sharp pulse wavefront (sub-ps) using two broad pulses in high density plasma. The technique can work in a regime that is not accessible by plasma mirrors when the pulse pedestals are stronger than the ionization intensity.
Cite
@article{arxiv.1703.07287,
title = {Laser Pulse Sharpening with Electromagnetically Induced Transparency in Plasma},
author = {Kenan Qu and Nathaniel J. Fisch},
journal= {arXiv preprint arXiv:1703.07287},
year = {2017}
}