Micron-scale Fast Electron Filamentation and Recirculation determined from Rear Side Optical Emission in High Intensity Laser-Solid Interactions
Plasma Physics
2015-05-18 v1
Abstract
The transport of relativistic electrons generated in the interaction of petawatt class lasers with solid targets has been studied through measurements of the optical emission from their rear surface. The high degree of polarization of the emission indicates that it is predominantly optical transition radiation. A halo that surrounds the main region of emission is also polarized, and is attributed to the effect of electron recirculation. The variation of the amplitude of the transition radiation with respect to observation angle provides evidence for the presence of {m-size} filaments.
Cite
@article{arxiv.1002.4808,
title = {Micron-scale Fast Electron Filamentation and Recirculation determined from Rear Side Optical Emission in High Intensity Laser-Solid Interactions},
author = {C. Bellei and S. R. Nagel and S. Kar and A. Henig and S. Kneip and C. Palmer and A. Sävert and L. Willingale and D. Carroll and B. Dromey and J. S. Green and K. Markey and P. Simpson and R. J. Clarke and H. Lowe and D. Neely and C. Spindloe and M. Tolley and M. Kaluza and S. P. D. Mangles and P. McKenna and P. A. Norreys and J. Schreiber and M. Zepf and J. R. Davies and K. Krushelnick and Z. Najmudin},
journal= {arXiv preprint arXiv:1002.4808},
year = {2015}
}
Comments
12 pages, 7 figures