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. 2017 Mar 10;7:43910. doi: 10.1038/srep43910

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Copyright © 2017, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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3D PIC simulations of spatial (a–c), angular (d–f) and spectral (g–i) distribution of oblique electrons on a screen 10 mm downstream from the plasma. The laser intensity and spot size are a₀ = 2, w₀ = 5 μm (left column), a₀ = 2, w₀ = 7 μm (middle column) and a₀ = 3, w₀ = 7 μm (right column). Dashed curves in Figures (d–f) show the energy dependence on angle. Further examples are given in the Supplementary Section.