Figure 5
Normalized transient differential signal for −1st (green), 0th (red) and +1st (violet) GaAs/AlAs SL peaks. Their averaged trace is depicted in black. Blue and magenta solid lines represent the SL response modelled using bulk material properties and adjusted ones, respectively. The grey solid line represents the average temperature of the whole SL as function of delay time between the optical pump and X-ray probe. The displayed curves were obtained by averaging both the experimental and the theoretical data in the same 0.003° angular range as displayed in Fig. S2(c). |