Fig. 3: The characteristics of pre-plasma for microwire array (MWA) target.
From: High efficiency laser-driven proton sources using 3D-printed micro-structure
Expanded pre-plasma of MWA targets after loading the pre-pulse in FLASH simulations for p = 1.3 μm (a) and p = 3.3 μm (b). Mass density distribution along y = 17 μm (black), 18 μm (blue) and 19 μm (red) for p = 1.3 μm (c) and p = 3.3 μm (d) related to (a), (b), respectively. The diffracted pre-pulse field Ex within the MWA structure (e). The density distribution of pre-expanding MWA target based on the FLASH results (f), which is inputted into particle-in-cell simulations. The inset shows the pre-plasma scale lengths, where lh and lx are for the pillars, and lf for the substrate flat.
