Optical guiding in meter-scale plasma waveguides
Optics
2020-08-19 v1 Accelerator Physics
Abstract
We demonstrate a new highly tunable technique for generating meter-scale low density plasma waveguides. Such guides can enable electron acceleration to tens of GeV in a single stage. Plasma waveguides are imprinted in hydrogen gas by optical field ionization induced by two time-separated Bessel beam pulses: The first pulse, a J_0 beam, generates the core of the waveguide, while the delayed second pulse, here a J_8 or J_16 beam, generates the waveguide cladding. We demonstrate guiding of intense laser pulses over hundreds of Rayleigh lengths with on axis plasma densities as low as N_e0=5x10^16 cm^-3.
Cite
@article{arxiv.2005.14389,
title = {Optical guiding in meter-scale plasma waveguides},
author = {B. Miao and L. Feder and J. E. Shrock and A. Goffin and H. M. Milchberg},
journal= {arXiv preprint arXiv:2005.14389},
year = {2020}
}