Hard X-ray ptychography for optics characterization using a partially coherent synchrotron source.

ABSTRACT: Ptychography is a scanning coherent diffraction imaging technique which provides high resolution imaging and complete spatial information of the complex electric field probe and sample transmission function. Its ability to accurately determine the illumination probe has led to its use at modern synchrotrons and free-electron lasers as a wavefront-sensing technique for optics alignment, monitoring and correction. Recent developments in the ptychography reconstruction process now incorporate a modal decomposition of the illuminating probe and relax the restriction of using sources with high spatial coherence. In this article a practical implementation of hard X-ray ptychography from a partially coherent X-ray source with a large number of modes is demonstrated experimentally. A strongly diff

SUBMITTER: Moxham TEJ 

PROVIDER: S-EPMC7642961 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature