Figure 2
Ptychography results for the OCT
(a,b) and PS350_thin (c,d) samples. Displayed in colors (a,c) and black and white (b,d) is the phase retardation (Δϕ) of the recovered complex-valued exit wavefield. Area of the images in panels (a,c) is 2.5×2.5 μm2, area of the images in panels (b,d) is 870×870 nm2 and corresponds to the square marked in blue in (a,c). Scale bar is 200 nm. Sketch in Fig. 2b depicts octapods in pod-to-pod contact visible in the square marked in white; sketch in Fig. 2d shows more intricate 3D aggregates with stronger interconnected octapods visible in the square marked in white.
