X-ray ptychographic microscopy combines the advantages of raster scanning X-ray
microscopy with the more recently developed techniques of coherent diffraction imaging. It is …

The problem of phase retrieval, ie, the recovery of a function given the magnitude of its
Fourier transform, arises in various fields of science and engineering, including electron …

Holography provides access to the optical phase. The emerging compressive phase
retrieval approach can achieve in-line holographic imaging beyond the information-theoretic …

Knowledge gained through x-ray crystallography fostered structural determination of
materials and greatly facilitated the development of modern science and technology in the …

Progress in imaging and metrology depends on exquisite control over and comprehensive
characterization of wave fields. As reflected in its name, coherent diffractive imaging relies …

The ptychographical iterative engine (or PIE) is a recently developed phase retrieval
algorithm that employs a series of diffraction patterns recorded as a known illumination …

Very high resolution X-ray imaging has been the subject of considerable research over the
past few decades. However, the spatial resolution of these methods is limited by the …

Ptychography is a coherent diffractive imaging method that uses multiple diffraction patterns
obtained through the scan of a localized illumination on the specimen. Until recently …

The understanding and management of strain is of fundamental importance in the design
and implementation of materials. The strain properties of nanocrystalline materials are …

We introduce the application of maximum-likelihood (ML) principles to the image
reconstruction problem in coherent diffractive imaging. We describe an implementation of …