| Literature DB >> 20116927 |
Cameron M Kewish1, Pierre Thibault, Martin Dierolf, Oliver Bunk, Andreas Menzel, Joan Vila-Comamala, Konstantins Jefimovs, Franz Pfeiffer.
Abstract
A technique for quantitatively characterizing the complex-valued focal wavefield of arbitrary optics is described and applied to reconstructing the coherent focused beam produced by a reflective/diffractive hard X-ray mirror. This phase-retrieval method, based on ptychography, represents an important advance in X-ray optics characterization because the information obtained and potential resolution far exceeds that accessible to methods of directly probing the focus. Ptychography will therefore be well-suited for characterizing and aligning future nanofocusing X-ray optics. (c) 2010 Elsevier B.V. All rights reserved.Year: 2010 PMID: 20116927 DOI: 10.1016/j.ultramic.2010.01.004
Source DB: PubMed Journal: Ultramicroscopy ISSN: 0304-3991 Impact factor: 2.689