Figure 5
From: Helical Phase Structure of Radiation from an Electron in Circular Motion
Double-slit diffraction patterns of undulator radiation. From the left column to the right; the fundamental, the second harmonic (left-handed) and the second harmonic (right-handed), from the top row to the bottom; schematic drawings of the double-slits (red rectangles) and the phase distributions, the raw CCD camera images, those with the analytic calculation following Sztul and Alfano24 (red dotted lines) and the SRW simulation results25. The handedness is defined as same as in Fig. 4. The centres of the analytic calculation results are fitted to the measurements.
