Figure 4: Measured cross-correlations S(Δt) on fused silica targets. | Nature Communications

Figure 4: Measured cross-correlations S(Δt) on fused silica targets.

From: Single-shot pulse duration monitor for extreme ultraviolet and X-ray free-electron lasers

Figure 4

(a) Measurement (white rectangles) and fit (blue line) at 41.5 nm FEL wavelength, corresponding to an FEL pulse duration of τFEL=(184±14) fs. (b) Measurement (white rectangles) and fit (blue line) at 5.5 nm FEL wavelength, corresponding to τFEL=(21±19) fs. The grey data scattering originates from small fluctuations in spatial beam profile features (optical laser and FEL) between two shots taken for the background subtraction.

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