Fig. 5.

Increase of the magnitude and uniformity of the light fluence rate by using the light catcher. Panels (a) and (b) depict the distribution of the fluence rate in x-y plane at z = 11 mm, where the top surface of the target is located, in dB [-8, 0] at 30 ns without and with the light catcher, respectively. The contours of the magnitude are overlaid on the figures to provide a quantitative comparison. Panel (c) is the fluence rate profiles along x-axis through the top surface of the target with (solid) and without (dash-dot) light catcher, and (d) represents the difference between them.