Figure 3
Performance of the APPLE-Knot undulator with Fig. 2(a) structure in horizontal (red), circular (green) and vertical (blue) modes. (a) Magnetic fields along the x (solid lines) and y (broken lines) directions. (b) Intensities (left axes) and polarizations (right axes) of photons at different energies. (c), (d), (e) Electron orbits and (f), (g), (h) electron velocities in the horizontal, circular and vertical modes, respectively. |