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Title: On the origin of super-hot electrons from intense laser interactions with solid targets having moderate scale length preformed plasmas

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4866587· OSTI ID:22252047
; ;  [1]
  1. Physics Department, The Ohio State University, Columbus, Ohio 43210 (United States)

We use particle-in-cell modeling to identify the acceleration mechanism responsible for the observed generation of super-hot electrons in ultra-intense laser-plasma interactions with solid targets with pre-formed plasma. We identify several features of direct laser acceleration that drive the generation of super-hot electrons. We find that, in this regime, electrons that become super-hot are primarily injected by a looping mechanism that we call loop-injected direct acceleration.

OSTI ID:
22252047
Journal Information:
Physics of Plasmas, Vol. 21, Issue 2; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
Country of Publication:
United States
Language:
English