Fig. 7.
Supplementary. Amplitude and phase reconstruction results of the test features at 470 nm, 550 nm and 630 nm central wavelengths are illustrated. For this experiment, F ~1 and a 50 μm aperture at z1 = ~3cm is utilized. Source bandwidth is kept constant at ~5 nm. Scale bars, 5 μm. Notice that in the recovered phase images, the gap between the squares is imaged to be larger than the recovered amplitude images. The reason for this discrepancy is the fact that for the etched objects on glass, the edges do not obey a phase object criterion as they significantly scatter light, which cast a strong signature in the reconstructed amplitude images, yielding a better estimation of the gap between the square features in the amplitude domain rather than the phase.