Results 41 to 50 of about 2,300,562 (271)
When Holography Meets Coherent Diffraction Imaging [PDF]
Biomedical Optics and 3-D Imaging, 2012 The phase problem is inherent to crystallographic, astronomical and optical imaging where only the intensity of the scattered signal is detected and the phase information is lost and must somehow be recovered to reconstruct the object’s structure. Modern imaging techniques at the molecular scale rely on utilizing novel coherent light sources like X-ray
LatychevskaiaTatiana +2 more
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Communications Materials, 2020 Coherent x-ray diffractive imaging is a powerful technique for determining strain on the nanometer scale. Here, it is used to image semiconducting GaAs1-yNy structures on a GaAs substrate and to measure strain, demonstrating its potential for studying ...
Felisa Berenguer +8 more
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Phase retrieval by coherent modulation imaging
Nature Communications, 2016 Robust coherent diffractive imaging generally requires many exposures that may damage samples. Here, the authors develop a single-shot X-ray imaging method applicable to general samples for materials and biological sciences, also enabling imaging of ...
Fucai Zhang +5 more
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Laser Synthetic Aperture Coherent Imaging for Micro-Rotating Objects Based on Array Detectors
IEEE Photonics Journal, 2022 Through the relative motion of ladar and object, inverse synthetic aperture ladar can form the virtual synthetic aperture and improve the imaging resolution.
Anjing Cui +5 more
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IEEE Photonics Journal, 2022 We have developed a guided ptychography iterative engine (gPIE) algorithm that applies the concept of optimization to the conventional ePIE (extended ptychography iterative engine) approach.
Cheng-Wei Hsu +6 more
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Keyhole coherent diffractive imaging [PDF]
Nature Physics, 2008 A powerful coherent diffractive X-ray imaging technique could enable next generation synchrotrons and free-electron lasers to study much larger samples than previously thought possible.
Abbey, B. +7 more
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Fresnel coherent diffractive imaging tomography of whole cells in capillaries
New Journal of Physics, 2014 X-ray tomography can be used to study the structure of whole cells in close to their native state. Ptychographic Fresnel coherent diffractive imaging (FCDI) holds particular promise for high-resolution tomographic imaging with quantitative phase ...
Mac B Luu +13 more
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Coherence measurements and coherent diffractive imaging at FLASH [PDF]
Journal of Physics B: Atomic, Molecular and Optical Physics, 2010 We present an overview of recent experiments performed at the free-electron laser (FEL) FLASH at DESY in Hamburg. Experiments were focused on coherence measurements and coherent x-ray diffractive imaging (CXDI) of periodic and non-periodic biological samples. Young's double slit experiment was performed at FLASH to measure its coherence properties at a
Vartanyants, * I A +4 more
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The self-healing of defects induced by the hydriding phase transformation in palladium nanoparticles
Nature Communications, 2017 Nanoscale materials commonly have improved properties over their bulk counterparts. Here, the authors use Bragg coherent diffractive imaging to reveal that Pd nanoparticles can self-heal crystallographic defects induced during the hydriding phase ...
A. Ulvestad, A. Yau
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Quantum coherent diffractive imaging
Journal of Physics: Photonics, 2020 Coherent diffractive imaging has enabled the structural analysis of individual free nanoparticles in a single shot and offers the tracking of their light induced dynamics with unprecedented spatial and temporal resolution. The retrieval of structural information from scattering images in CDI experiments is so far mostly based on the assumption of ...
Björn Kruse +3 more
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