May 21
A new paper just published in Physical Review Letters introduces our Unified Modulated Pattern Analysis (UMPA) method, which improves speckle tracking techniques by combining multiple measurements to increase resolution and sensitivity. In the paper we demonstrate that the method applies equally well to random (speckles) and regular (e.g. grating) patterns. An implementation of the method …
Feb 01
Near-field ptychography has made its entry a few years ago as a promising alternative to other holographic techniques. The technique combines the concepts and experimental setup of full-field phase-contrast imaging with the robust phase retrieval principles of ptychography. To take one dataset, one simply needs to translate the sample with respect to a structured illumination. …
Jun 28
A new paper out today in Physical Review Letters shows a demonstration of an X-ray imaging method that uses the a high-brilliance lab source to form at once four images. In addition to theĀ traditional absorption image, the approach yields differential phase-contrast images (along x and y) as well as a dark-field image, which quantifies the …
FP7 starting grant OptImaX
