Extended Data Fig. 2: Angular dependence of efficiency.
From: Nanoscale ultrafast lattice modulation with a free-electron laser
(a), (b) and (c) are angular dependences of the diffraction efficiency measured for the Bragg peak (black) and the TG peaks. For detailed comparison, the horizontal axis Δϕ is the relative angle with respect to the peak position of each curve. The number in the legend shows the corresponding XTG wavelength ΛTG. The ± kTG on the top left corner indicates the angular relation of the TG peak with respect to the Bragg peak and is the same as that in Fig. 2.
