Wave propagation and phase retrieval in Fresnel diffraction by a distorted-object approach
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- Cornell High Energy Synchrotron Source (CHESS), Wilson Laboratory, Cornell University, Ithaca, New York 14853 (United States)
An extension of the far-field x-ray diffraction theory is presented by the introduction of a distorted object for calculation of coherent diffraction patterns in the near-field Fresnel regime. It embeds a Fresnel-zone construction on an original object to form a phase-chirped distorted object, which is then Fourier transformed to form a diffraction image. This approach extends the applicability of Fourier-based iterative phasing algorithms into the near-field holographic regime where phase retrieval had been difficult. Simulated numerical examples of this near-field phase retrieval approach indicate its potential applications in high-resolution structural investigations of noncrystalline materials.
- OSTI ID:
- 20719137
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 3 Vol. 72; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
Similar Records
A unified phase retrieval algorithm for both far-field and near-field diffractive imaging.
Phase retrieval in x-ray coherent Fresnel projection-geometry diffraction
Near-field limitations of Fresnel-regime coherent diffraction imaging
Conference
·
Sat Dec 31 23:00:00 EST 2005
·
OSTI ID:970782
Phase retrieval in x-ray coherent Fresnel projection-geometry diffraction
Journal Article
·
Sun Jan 21 23:00:00 EST 2007
· Applied Physics Letters
·
OSTI ID:20971779
Near-field limitations of Fresnel-regime coherent diffraction imaging
Journal Article
·
Thu Aug 03 20:00:00 EDT 2017
· Physical Review B
·
OSTI ID:1375870