Fig. 2: Experimental measurements with pump-probe delay Δt ≈ 0.7 ns.
From: Recovery of hydrogen plasma at the sub-nanosecond timescale in a plasma-wakefield accelerator
The plots are obtained by stacking 20 consecutive shots (delimited by the dashed white lines) acquired in the range τD = 0.5 − 6 μs with steps of 0.5 μs. a–d Energy spectra collected at several τD (corresponding to different plasma densities) with both pump and probe beams (a), only pump (probe off, b), and only probe (pump off, c). The plot (d) shows the reconstructed probe (with pump on) obtained as d = a − b.
