Inline holography is a common phase-contrast imaging method which uses free-space
propagation to encode the phase signal into measured intensities. However, quantitative …

Inline holography, like other lensless imaging methods, circumvents limitations of x-ray
optics through an a posteriori phase-retrieval step. However, phase retrieval for optically …

Propagation-based phase-contrast X-ray imaging is by now a well established imaging
technique, which–as a full-field technique–is particularly useful for tomography applications …

Propagation-based imaging or inline holography in combination with computed tomography
(holotomography) is a versatile tool to access a sample's three-dimensional (3D) micro or …

We demonstrate quantitative noninterferometric x-ray phase–amplitude measurement. We
present results from two experimental geometries. The first geometry uses x rays diverging …

Ptychographic imaging is a powerful means of imaging beyond the resolution limits of typical
x-ray optics. Recovering images from raw ptychographic data, however, requires the …

We have implemented a deterministic method for solving the phase problem in hard x-ray in-
line holography which overcomes the twin image problem. The phase distribution in the …

We realized a phase retrieval technique using terahertz (THz) radiation as an alternative to
THz digital holography, named THz ptychography. Ptychography has been used in x-ray …

We retrieve x-ray phase images from ptychographical data which, according to the
conventional coherent diffractive imaging (CDI) criterion, have been grossly undersampled …

Recently, Wolf has shown that the phase measurement associated with fields that are not
monochromatic, which is relevant for all x-ray structure investigations, must be properly …