Results 21 to 30 of about 2,300,562 (271)

Three-dimensional coherent X-ray diffractive imaging of whole frozen-hydrated cells

open access: yesIUCrJ, 2015
A structural understanding of whole cells in three dimensions at high spatial resolution remains a significant challenge and, in the case of X-rays, has been limited by radiation damage.
Jose A. Rodriguez   +15 more
doaj   +3 more sources

Coherent diffractive imaging of single helium nanodroplets with a high harmonic generation source [PDF]

open access: yesNature Communications, 2017
Diffraction imaging studies of free individual nanoparticles have so far been restricted to XUV and X-ray free - electron laser facilities. Here the authors demonstrate the possibility of using table-top XUV laser sources to image prolate shapes of ...
Daniela Rupp   +16 more
doaj   +2 more sources

Coherence-resolution relationship in holographic and coherent diffractive imaging

open access: yesOptics Express, 2018
We study by numerical simulation how spatial coherence affects the reconstruction quality of images in coherent diffractive x-ray imaging. Using a conceptually simple, but computationally demanding approach, we have simulated diffraction data recorded ...
Salditt, Tim   +3 more
core   +4 more sources

Towards kilohertz synchrotron coherent diffractive imaging. [PDF]

open access: yesJ Appl Crystallogr, 2022
X-ray coherent diffractive imaging (CDI) techniques have been applied with widespread impact to study nanoscale material properties. New fast framing detectors may reveal dynamics that occur at millisecond timescales. This work demonstrates by simulation that kilohertz synchrotron CDI is possible, by making use of redundant information from static ...
Hinsley GN, Kewish CM, van Riessen GA.
europepmc   +3 more sources

Radiation damage in a micron-sized protein crystal studied via reciprocal space mapping and Bragg coherent diffractive imaging [PDF]

open access: yesStructural Dynamics, 2015
For laboratory and synchrotron based X-ray sources, radiation damage has posed a significant barrier to obtaining high-resolution structural data from biological macromolecules.
H. D. Coughlan   +7 more
doaj   +2 more sources

Dichroic coherent diffractive imaging. [PDF]

open access: yesProc Natl Acad Sci U S A, 2011
Understanding electronic structure at the nanoscale is crucial to untangling fundamental physics puzzles such as phase separation and emergent behavior in complex magnetic oxides. Probes with the ability to see beyond surfaces on nanometer length and subpicosecond time scales can greatly enhance our understanding of these systems and will undoubtedly ...
Tripathi A   +7 more
europepmc   +4 more sources

Whole-cell phase contrast imaging at the nanoscale using Fresnel coherent diffractive imaging tomography. [PDF]

open access: yesSci Rep, 2013
-ray tomography can provide structural information of whole cells in close to their native state. Radiation-induced damage, however, imposes a practical limit to image resolution, and as such, a choice between damage, image contrast, and image resolution
Jones MW   +13 more
europepmc   +3 more sources

Coherent Diffractive Imaging with Diffractive Optics

open access: yesPhysical Review Letters, 2022
Physical review letters 128(22), 223901 (2022).
Jakob Soltau   +2 more
openaire   +4 more sources

Recovering Missing Data in Coherent Diffraction Imaging [PDF]

open access: yesOSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP), 2021
A method is presented for inferring missing low-frequency data in coherent diffraction imaging via the least-squares solution of a linear system. This gives rise to improved image reconstruction when solving the phase retrieval problem.
David A. Barmherzig   +5 more
openaire   +3 more sources

Snapshot multispectral imaging using a diffractive optical network

open access: yesLight: Science & Applications, 2023
Multispectral imaging has been used for numerous applications in e.g., environmental monitoring, aerospace, defense, and biomedicine. Here, we present a diffractive optical network-based multispectral imaging system trained using deep learning to create ...
Deniz Mengu   +3 more
doaj   +1 more source

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