Figure 1

A typical phase-diverse CDI experimental geometry. Coherent planar x rays illuminate a Fresnel zone plate (FZP) or alternate focusing optic. If a FZP is used, a small ($10\mu \mathrm{m}$) order sorting aperture (OSA) is used to remove high order diffraction. The arrangement here allows variation in longitudinal ($z$) and transverse ($x$ and $y$) position, shown in (b) and (c) respectively.Reuse & Permissions

Figure 2

(a) A scanning electron microscopy image of the nanostructured $\mathrm{Au}\mathrm{\text{−}}\mathrm{Cr}$ object. (b) Phase-diversity CDI reconstruction, showing the phase of the reconstructed transmission function. (c) Gaussian distributions were fitted to the recovered phase in regions i., ii., and iii., (shown in b). The watermarked regions in the plot show the histograms created from the measured data. (d) Differential intensity contrast image calculated using a relative illumination phase shift of $\varphi =\frac{\pi }{2}$ and a translation of ${\mathit{\rho }}_0=(3.2,3.2)\mu \mathrm{m}$.Reuse & Permissions

Figure 3

A dose limited comparison of single probe measured images, and phase-diverse reconstructions. The images show the phase of the reconstructed transmission function after 70 seconds of net exposure for (a), a phase-diverse CDI reconstruction using both longitudinal and translational phase diversity, (b) a phase-diverse CDI reconstruction using translational phase diversity, and (c), a single probe FCDI reconstruction. (d) Reconstructed phase using 7 seconds of net exposure for a phase-diverse CDI reconstruction using both longitudinal and translational phase diversity.Reuse & Permissions