Figure 2

Time dependence of the relative change of the integrated intensity of the Bragg peaks \(\Delta I(\tau )/I\) (a–c) and their widths in the radial \(\Delta {w}_{q}(\tau )/{w}_{q}\) (d–f) and azimuthal \(\Delta {w}_{\varphi }(\tau )/{w}_{\varphi }\) (g–i) directions at three measured IR laser intensities. Black (blue) dots are experimental data corresponding to 25.25 ps (6.5 ps) time delay increment and solid red lines are exponential fits.