Figure 2
From: Investigation of nanoscale structural alterations of cell nucleus as an early sign of cancer
The correspondence between axial spatial frequency and wavelength in the reflection configuration. (a) Ewald’s sphere cap at a normal incidence in the reflection configuration. (b) The axial spatial frequency (k z ) is only weakly dependent on the backscattering angles or lateral spatial frequency (k r ). (c) Each axial spatial frequency (k z ) can be encoded by each wavelength with a small uncertainty as indicated by two red dashed lines on Figure (b).