Enhanced laser-driven ion acceleration by superponderomotive electrons generated from near-critical-density plasma
Plasma Physics
2018-02-21 v1
Abstract
We report on the experimental studies of laser driven ion acceleration from double-layer target where a near-critical density target with a few-micron thickness is coated in front of a nanometer thin diamond-like carbon foil. A significant enhancement of proton maximum energies from 12 to ~30 MeV is observed when relativistic laser pulse impinge on the double-layer target under linear polarization. We attributed the enhanced acceleration to superponderomotive electrons that were simultaneously measured in the experiments with energies far beyond the free-electron ponderomotive limit. Our interpretation is supported by two-dimensional simulation results.
Keywords
Cite
@article{arxiv.1710.09855,
title = {Enhanced laser-driven ion acceleration by superponderomotive electrons generated from near-critical-density plasma},
author = {J. H. Bin and M. Yeung and Z. Gong and H. Y. Wang and C. Kreuzer and M. L. Zhou and M. J. V. Streeter and P. S. Foster and S. Cousens and B. Dromey and J. Meyer-ter-Vehn and M. Zepf and J. Schreiber},
journal= {arXiv preprint arXiv:1710.09855},
year = {2018}
}