Holotomography (HT) is a laser technique to measure the three-dimensional refractive index (RI) tomogram of a microscopic sample such as biological cells and tissues. Because the RI can serve as an intrinsic imaging contrast for …

Nanotomography, much like its related modalities tomography and microtomography, uses x-rays to create cross-sections from a 3D-object that later can be used to recreate a virtual model without destroying the original model, applying Nondestructive testing. …

Phase retrieval is the process of algorithmically finding solutions to the phase problem. Given a complex signal
$${\displaystyle F(k)}$$
, of amplitude
$${\displaystyle |F(k)|}$$
, and phase
$${\displaystyle \psi (k)}$$

Phase-contrast X-ray imaging or phase-sensitive X-ray imaging is a general term for different technical methods that use information concerning changes in the phase of an X-ray beam that passes through an object in order to …