Transverse Dynamics and Energy Tuning of Fast Electrons Generated in   Sub-Relativistic Intensity Laser Pulse Interaction with Plasmas
  The regimes of quasi-mono-energetic electron beam generation were experimentally studied in the sub-relativistic intensity laser plasma interaction. The observed electron acceleration regime is unfolded with two-dimensional-particle-in-cell simulations of laser-wakefield generation in the self-modulation regime. 
M. Mori, M. Kando, I. Daito, H. Kotaki, Y. Hayashi, A. Yamazaki, K.   Ogura, A. Sagisaka, J. Koga, K. Nakajima, H. Daido, S....