Figure 3
From: Following the dynamics of matter with femtosecond precision using the X-ray streaking method
Single-shot time resolved X-ray diffraction measurements.
The experimental geometry is the one depicted in Fig. 1, however using a 2-dimensional pixel detector. The centre of the detector is protected by a beam stop. Panels (a)–(d) show the signal of the probe and reference beams on a logarithmic scale (log10). Panel (a) was recorded with the pump beam blocked upstream of the sample, panels (b)–(d) display three single shot measurements at the full pump power density of ≈3 × 1014 W/cm2, meaning that no attenuators were used in the pump beam. Panel (e) shows the intensities integrated over the spots of (b)–(d), normalized with the corresponding intensities of (a), versus delay time. The probe pulses decay due to the destruction of the Bi crystal lattice, whereas the reference signals remain constant. The dashed lines merely serve to guide the eye and do not represent experimental data.
