Figure 4
From: Topological charge of soft X-ray vortex beam determined by inline holography
Simulation of inline holography for pair annihilation of edge dislocations in a helical magnetic texture. (a) (I)–(VI) Schematic of pair annihilation of the defects. Positive and negative edge dislocations (indicated by arrows in figure (I)) annihilate when they meet. (b) Holographic pattern calculated for \(n = \pm 1\) diffraction from defect pattern II. (c) \(A(\rho _{fn}, \phi _{fn})\), (d) phase distribution, and (e) TC spectrum for the \(n = +1\) diffraction wave. (f) \(L_m\) of \(\ell = \pm 1, 0\) for the \(n = +1\) diffraction wave generated from each defect pattern.
