Results 61 to 70 of about 1,518 (121)
An algorithm for Bragg coherent x-ray diffractive imaging of highly strained nanocrystals
New Journal of Physics, 2020 By using phase retrieval, Bragg coherent diffractive imaging (BCDI) allows tracking of three-dimensional displacement fields inside individual nanocrystals.
Ziyi Wang, Oleg Gorobtsov, Andrej Singer
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Advanced Engineering Materials, EarlyView.We apply a foundational machine‐learning interatomic potential based on the graph atomic cluster expansion (GRACE) to simulate the commercial Ni‐based single‐crystal superalloy CMSX‐4. Hybrid Monte‐Carlo/molecular dynamics sampling resolves short‐range order in the γ phase and L12 sublattice occupancies in the γ’ phase and connects them to stacking ...
Aditya Vishwakarma +4 more
wiley +1 more source
Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry
Advanced Functional Materials, EarlyView.In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite +5 more
wiley +1 more source
Laser-Induced Transient Opacity in Helium Nanodroplets Probed by Single-Shot Coherent Diffraction
Ultrafast ScienceSingle-shot coherent diffractive imaging with intense short-wavelength light pulses enables the structural characterization of individual nanoparticles in free flight with high spatial and temporal resolution.
Julian C. Schäfer-Zimmermann +16 more
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Advanced Functional Materials, EarlyView.We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim +6 more
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Bragg coherent diffractive imaging of polar domain structure in LiNbO3 thin films [PDF]
AIP AdvancesWe employ Bragg coherent diffractive imaging to reconstruct the three-dimensional [102] displacement field and strain within individual grains of ferroelectric LiNbO3 thin films.
Sowmya Srinivasan +5 more
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Structural Dynamics, 2015 A major challenge in high-resolution x-ray free-electron laser-based coherent diffractive imaging is the development of aerosol injectors that can efficiently deliver particles to the peak intensity of the focused X-ray beam. Here, we consider the use of
R. A. Kirian +24 more
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Ultra-broadband diffractive imaging with unknown probe spectrum
Light: Science & ApplicationsStrict requirement of a coherent spectrum in coherent diffractive imaging (CDI) architectures poses a significant obstacle to achieving efficient photon utilization across the full spectrum. To date, nearly all broadband computational imaging experiments
Chuangchuang Chen +2 more
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Mechanical breakdown of bent silicon nanowires imaged by coherent x-ray diffraction
New Journal of Physics, 2013 We have developed a method of coherent x-ray diffractive imaging to surmount its inability to image the structure of strongly strained crystals. We used calculated models from finite–element analysis to guide an iterative algorithm to fit experimental ...
Xiaowen Shi +5 more
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Coherent diffractive imaging of proteins and viral capsids: simulating MS SPIDOC. [PDF]
Anal Bioanal Chem, 2023 Kierspel T +24 more
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