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Hard X-ray Microscopy Enhanced by Coherent Image Reconstruction

dc.contributor.authorSoltau, Jakob
dc.date.accessioned2022-08-04T09:02:27Z
dc.date.available2022-08-04T09:02:27Z
dc.date.issued2022de
dc.identifier.urihttps://doi.org/10.17875/gup2022-2037
dc.format.extent210de
dc.format.mediumPrintde
dc.language.isoengde
dc.relation.ispartofseriesGöttingen Series in X-ray Physicsde
dc.rights.urihttps://creativecommons.org/licenses/by-sa/4.0/deed.de
dc.subject.ddc530de
dc.subject.ddc540de
dc.titleHard X-ray Microscopy Enhanced by Coherent Image Reconstructionde
dc.typemonographde
dc.price.print44,00
dc.identifier.urnurn:nbn:de:gbv:7-isbn-978-3-86395-553-3-6
dc.description.printSoftcover, 17x24de
dc.subject.divisionpeerReviewedde
dc.subject.subjectheadingPhysikde
dc.relation.isbn-13978-3-86395-553-3
dc.identifier.articlenumber8102251de
dc.identifier.internisbn-978-3-86395-553-3de
dc.bibliographicCitation.volume029de
dc.subject.bisacSCI055000de
dc.subject.vlb640de
dc.subject.vlb650de
dc.subject.bicPHde
dc.subject.bicPNde
dc.description.abstractgerX-ray microscopy is used to study the structure, dynamics and bulk properties of matter with high spatial resolutions. It is widely applied, from physics and chemistry to material and life sciences. In the past two decades, progress in X-ray microscopy was driven either by improvements in X-ray optics or by improvements in the image reconstruction by using algorithms as computational lenses. In this work both approaches are combined to exploit the advantages of X-ray imaging with a large numerical aperture and the advantages of coherent image reconstruction. It is shown that a combined X-ray microscope using both, advanced optics and algorithms, is neither limited by flawed optics nor by constraints imposed by reconstruction algorithms, which enables to go beyond current limits in resolution and applications. The thesis is structured in four parts. In the first part hard X-ray lenses, so called multilayer zone plates, are simulated to investigate volume diffraction effects within the multilayer structure, and to study the potential for smaller focus sizes and higher efficiencies. In the second part, the multilayer zone plates are characterized and implemented in an X-ray microscope. In the third part, a new imaging scheme is presented, which combines in-line holography and coherent diffractive imaging. This method overcomes the current resolution limit of in-line holography and can achieve super-resolution with respect to the numerical aperture of the illuminating beam. Finally, in the fourth part a multilayer zone plate is used as an objective lens with a known transfer function in a novel coherent full-field imaging experiment based on iterative phase retrieval, for high resolution and quantitative contrast.de
dc.description.abstractengX-ray microscopy is used to study the structure, dynamics and bulk properties of matter with high spatial resolutions. It is widely applied, from physics and chemistry to material and life sciences. In the past two decades, progress in X-ray microscopy was driven either by improvements in X-ray optics or by improvements in the image reconstruction by using algorithms as computational lenses. In this work both approaches are combined to exploit the advantages of X-ray imaging with a large numerical aperture and the advantages of coherent image reconstruction. It is shown that a combined X-ray microscope using both, advanced optics and algorithms, is neither limited by flawed optics nor by constraints imposed by reconstruction algorithms, which enables to go beyond current limits in resolution and applications. The thesis is structured in four parts. In the first part hard X-ray lenses, so called multilayer zone plates, are simulated to investigate volume diffraction effects within the multilayer structure, and to study the potential for smaller focus sizes and higher efficiencies. In the second part, the multilayer zone plates are characterized and implemented in an X-ray microscope. In the third part, a new imaging scheme is presented, which combines in-line holography and coherent diffractive imaging. This method overcomes the current resolution limit of in-line holography and can achieve super-resolution with respect to the numerical aperture of the illuminating beam. Finally, in the fourth part a multilayer zone plate is used as an objective lens with a known transfer function in a novel coherent full-field imaging experiment based on iterative phase retrieval, for high resolution and quantitative contrast.de
dc.notes.vlb-printlieferbar
dc.intern.doi10.17875/gup2022-2037de
dc.identifier.purlhttp://resolver.sub.uni-goettingen.de/purl?univerlag-isbn-978-3-86395-553-3
dc.format.chapters-de
dc.intern.asin3863955536


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