Fig. 7: Spatial sensitivity of the speckle size and phase of the holographic scattering on fine changes in the critical dimensions of the stacked-bar sample.

a Line scans of the inner-arc intensity as a function of the in-plane scattering angle 2θ at various fine deviations Δwt in top-bar width wt. b Line scans of the outer-arc intensity as a function of the off-plane scattering exit angle αf at various fine deviations (Δht) in the top-bar thickness ht. The black dashed lines guide the eye and highlight the speckle phase shift.