Figure 4
(a) Phase reconstruction of the object function (sample) using a detector area of 300 × 300 pixels. Of this area, the leftmost 85 columns have not been measured (see main text and Fig. 3). For resolution determination, two line scans in the horizontal (x) and vertical (y) direction are indicated by white lines and plotted as phase versus position in (b). Here, the red lines indicate the fitted error functions, with corresponding FWHM values of 22 nm in the horizontal direction and 27 nm in the vertical direction. (c) Phase reconstruction of the object function using the central 120 × 120 pixels exhibiting the same features as (a), but with a resolution limited by the portion of diffraction data used. |