Figure 2
From: Proton beam quality enhancement by spectral phase control of a PW-class laser system
Temporal laser pulse shapes retrieved from SPIDER measurements for different spectral phase configurations (left: after automatic Dazzler Feedback-loop, right: manual phase manipulation \(\Delta\)GVD 1750 fs\(^2\), \(\Delta\)TOD 40k fs\(^3\)). While different laser energy configurations (diagnostic mode—solid blue, power mode—dashed red, power mode & PM—dotted green) show consistent pulse shapes, the two spectral phase settings significantly differ between an almost ideally compressed FTL pulse (dash-dotted grey) and an asymmetrical, slightly longer pulse with shallow rising edge and shifted pre- and postpuls distribution.
