Figure 1
From: Luminous, relativistic, directional electron bunches from an intense laser driven grating plasma
Schematic of the experimental setup. The angle of incident of interaction laser (40°) is maintained for Gr500, Gr1000, and plane Au foil. Image plate (covered with appropriate thickness of aluminium filter) is placed behind the target to measure electron angular distribution. The energies of fast electrons emerging at target rear are measured by independent electron spectrometers located along three different directions to the target (40°, 90°, and 150°). The interaction laser contrast (bottom left) and atomic field microscopic (AFM) images of the grating targets (bottom right). Plasma emission is measured at the front side of the target at specular direction. L: Lens, BG39: A Schott BG-39 filter, SP: spectrometer.
