Now showing 1 - 3 of 3
  • 2022Journal Article Research Paper
    [["dc.bibliographiccitation.issue","22"],["dc.bibliographiccitation.journal","Physical Review Letters"],["dc.bibliographiccitation.volume","128"],["dc.contributor.author","Soltau, Jakob"],["dc.contributor.author","Osterhoff, Markus"],["dc.contributor.author","Salditt, Tim"],["dc.date.accessioned","2022-06-07T06:45:02Z"],["dc.date.available","2022-06-07T06:45:02Z"],["dc.date.issued","2022"],["dc.description.abstract","We present a novel approach to x-ray microscopy based on a multilayer zone plate which is positioned\r\nbehind a sample similar to an objective lens. However, unlike transmission x-ray microscopy, we do not\r\ncontent ourselves with a sharp intensity image; instead, we incorporate the multilayer zone plate transfer\r\nfunction directly in an iterative phase retrieval scheme to exploit the large diffraction angles of the small\r\nlayers. The presence of multiple diffraction orders, which is conventionally a nuisance, now comes as an\r\nadvantage for the reconstruction and photon efficiency. In a first experiment, we achieve sub-10-nm\r\nresolution and a quantitative phase contrast."],["dc.identifier.doi","10.1103/PhysRevLett.128.223901"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/108716"],["dc.language.iso","en"],["dc.relation","SFB 1456 | Cluster C | C03: Intensity correlations in diffraction experiments: convolution, reconstruction and information"],["dc.relation","SFB 1456: Mathematik des Experiments: Die Herausforderung indirekter Messungen in den Naturwissenschaften"],["dc.relation.issn","0031-9007"],["dc.relation.issn","1079-7114"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)"],["dc.rights","CC BY 4.0"],["dc.subject.gro","x-ray optics"],["dc.subject.gro","x-ray imaging"],["dc.title","Coherent Diffractive Imaging with Diffractive Optics"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2021Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","818"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Optica"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Soltau, Jakob"],["dc.contributor.author","Vassholz, Malte"],["dc.contributor.author","Osterhoff, Markus"],["dc.contributor.author","Salditt, Tim"],["dc.date.accessioned","2021-05-27T14:48:38Z"],["dc.date.available","2021-05-27T14:48:38Z"],["dc.date.issued","2021"],["dc.description.abstract","X-ray in-line holography is well suited for three-dimensional imaging, since it covers a large field of view without the necessity of scanning. However, its resolution does not extend to the range covered by coherent diffractive imaging or ptychography. In this work, we show full-field holographic x-ray imaging based on cone-beam illumination, beyond the resolution limit given by the cone-beam numerical aperture. Image information encoded in far-field diffraction and in holographic self-interference is treated in a common reconstruction scheme, without the usual empty beam correction step of in-line holography. An illumination profile tailored by waveguide optics and exactly known by prior probe retrieval is shown to be sufficient for solving the phase problem. The approach paves the way toward high-resolution and dose-efficient x-ray tomography, well suited for the current upgrades of synchrotron radiation sources to diffraction-limited storage rings."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2021"],["dc.identifier.doi","10.1364/OPTICA.420060"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/84769"],["dc.language.iso","en"],["dc.relation.issn","2334-2536"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.relation.workinggroup","RG Salditt (Structure of Biomolecular Assemblies and X-Ray Physics)"],["dc.subject.gro","x-ray imaging"],["dc.title","In-line holography with hard x-rays at sub-15  nm resolution"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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  • 2017Journal Article Research Paper
    [["dc.bibliographiccitation.artnumber","012049"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Journal of Physics. Conference Series"],["dc.bibliographiccitation.volume","849"],["dc.contributor.affiliation","Osterhoff, Markus;"],["dc.contributor.affiliation","Eberl, Christian;"],["dc.contributor.affiliation","Soltau, Jakob;"],["dc.contributor.affiliation","Krebs, Hans-Ulrich;"],["dc.contributor.author","Osterhoff, Markus"],["dc.contributor.author","Eberl, Christian"],["dc.contributor.author","Soltau, Jakob"],["dc.contributor.author","Krebs, Hans-Ulrich"],["dc.date.accessioned","2020-01-31T12:29:55Z"],["dc.date.available","2020-01-31T12:29:55Z"],["dc.date.issued","2017"],["dc.date.updated","2022-03-11T06:44:43Z"],["dc.description.abstract","With Pulsed Laser Deposition, Multilayer Zone Plates can be fabricated to focus hard x-ray beams into 2D spots smaller than 10 nm. To put these optics into use for imaging applications, we have commissioned a new dedicated sample tower as a high-resolution module for the GINIX instrument, stationed at the P10 beamline at PETRA III. Here we summarise the motorisation and show first imaging benchmark results obtained with a \"traditional\" Fresnel Zone Plate. The first 2D continuous STXM scan using the new EigerX 4M detector at full 750 Hz speed is shown: a field of view of roughly about 1 μm squared has been recorded with 255 × 255 images within 96 seconds."],["dc.identifier.doi","10.1088/1742-6596/849/1/012049"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/62920"],["dc.language.iso","en"],["dc.relation","SFB 755: Nanoscale Photonic Imaging"],["dc.relation.eissn","1742-6596"],["dc.relation.issn","1742-6588"],["dc.relation.issn","1742-6596"],["dc.relation.orgunit","Institut für Röntgenphysik"],["dc.rights.uri","http://creativecommons.org/licenses/by/3.0/"],["dc.subject.gro","x-ray optics"],["dc.subject.gro","x-ray imaging"],["dc.title","Preparing for hard x-ray microscopy with Multilayer Zone Plates"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]
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