Figure 1 | Scientific Reports

Figure 1

From: Enhancing laser-driven proton acceleration by using micro-pillar arrays at high drive energy

Figure 1

(a) A pulse from the PHELIX laser (red) irradiates a micro-pillar array (blue), inducing ion acceleration from the rear side of the film layer (green). All dimensions are to scale. Scanning electron microscopy (SEM) is used to characterize the targets before laser irradiation. (b) It provides information concerning the dimensions of a representative array target consisting of vertically aligned Cu-pillars with diameter 1.5 μm and length 30 μm standing on a Ag layer (the target is observed under an angle of ~6° from the normal to the support layer).

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