Fig. 3: Tomographic reconstruction results of a toothpick with glass beads.

a, b The real (a) and imaginary (b) parts of the reconstructed 3D refractive index distribution, \(n\left({\bf{r}}\right)=1-\delta \left({\bf{r}}\right)+i\beta \left({\bf{r}}\right)\), from PWF with a single measurement (K = 1). Please refer to Video S1 for the results from different cross sections. The yellow arrows indicate the interface between the toothpick and the adhesive. The white arrow symbols indicate the rotation axis orientations. The intersection of two orthogonal slices is shown as a solid line in the background. c, d The reconstructed counterparts from a LCS with 12 measurements in different diffuser positions (K = 12)²⁷. Note that the color scale is different from the PWF results (a, b). The red arrows indicate the reconstruction artifacts. e Line profiles along the intersection lines shown in the backgrounds. The expected δ and β values of the beads are shown as dotted lines. f The Fourier shell correlation (FSC) of the reconstructed tomograms. The intersections with the 1/4 criterion (dotted line) are pointed by the arrows with the corresponding spatial resolutions