Results 1 to 10 of about 297,164 (259)

A Phase Recovery Technique Using the Genetic Algorithm for Aberration Correction in a Coherent Imaging System [PDF]

Sensors, 2023
For traditional imaging systems, high imaging quality and system miniaturization are often contradictory. In order to meet the requirements of high imaging quality and system miniaturization, this paper proposes a method to correct the aberration of ...
Yu Zhang, Hongwen Zhang, Guoqin Yuan
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Characterization of Defocused Coherent Imaging Systems with Periodic Objects [PDF]

Sensors
Recent advancements in quantum and quantum-inspired imaging techniques have enabled high-resolution 3D imaging through photon correlations. These techniques exhibit reduced degradation of image resolution for out-of-focus samples compared to conventional
Gianlorenzo Massaro, Milena D’Angelo
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Electron beam profile imaging in the presence of coherent optical radiation effects

Physical Review Special Topics. Accelerators and Beams, 2012
High-brightness electron beams with low energy spread at existing and future x-ray free-electron lasers are affected by various collective beam self-interactions and microbunching instabilities. The corresponding coherent optical radiation effects, e.g.,
Christopher Behrens, Christopher Gerth, Gero Kube, Bernhard Schmidt, Stephan Wesch, Minjie Yan   +5 more
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Upgrade of the Coherent X-ray Scattering beamline at Pohang Light Source II [PDF]

Journal of Synchrotron Radiation
The Coherent X-ray Scattering beamline at the Pohang Light Source-II was constructed in 2011 for coherent diffraction imaging and has now been upgraded in its focusing optics, diffractometer, detectors and endstation. The enhanced photon flux density and
Daseul Ham, Daewoong Nam, Changyong Song, Su Yong Lee   +3 more
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Incoherent x-ray scattering in single molecule imaging

New Journal of Physics, 2014
Imaging of the structure of single proteins or other biomolecules with atomic resolution would be enormously beneficial to structural biology. X-ray free-electron lasers generate highly intense and ultrashort x-ray pulses, providing a route towards ...
J M Slowik, S-K Son, G Dixit, Z Jurek, R Santra   +4 more
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Electron-ion coincidence measurements of molecular dynamics with intense X-ray pulses

Scientific Reports, 2021
Molecules can sequentially absorb multiple photons when irradiated by an intense X-ray pulse from a free-electron laser. If the time delay between two photoabsorption events can be determined, this enables pump-probe experiments with a single X-ray pulse,
Xiang Li, Ludger Inhester, Timur Osipov, Rebecca Boll, Ryan Coffee, James Cryan, Ave Gatton, Tais Gorkhover, Gregor Hartman, Markus Ilchen, André Knie, Ming-Fu Lin, Michael P. Minitti, Clemens Weninger, Thomas J. A. Wolf, Sang-Kil Son, Robin Santra, Daniel Rolles, Artem Rudenko, Peter Walter   +19 more
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Heterogeneity in M. tuberculosis β-lactamase inhibition by Sulbactam

Nature Communications, 2023
For decades, researchers have elucidated essential enzymatic functions on the atomic length scale by tracing atomic positions in real-time. Our work builds on possibilities unleashed by mix-and-inject serial crystallography (MISC) at X-ray free electron ...
Tek Narsingh Malla, Kara Zielinski, Luis Aldama, Sasa Bajt, Denisse Feliz, Brendon Hayes, Mark Hunter, Christopher Kupitz, Stella Lisova, Juraj Knoska, Jose Manuel Martin-Garcia, Valerio Mariani, Suraj Pandey, Ishwor Poudyal, Raymond G. Sierra, Alexandra Tolstikova, Oleksandr Yefanov, Chung Hong Yoon, Abbas Ourmazd, Petra Fromme, Peter Schwander, Anton Barty, Henry N. Chapman, Emina A. Stojkovic, Alexander Batyuk, Sébastien Boutet, George N. Phillips, Lois Pollack, Marius Schmidt   +28 more
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An Experimental Ultrasound Database for Tomographic Imaging

Applied Sciences, 2022
In the framework of non-destructive testing and imaging, ultrasound tomography can have an important role in several applications, especially in the biomedical field.
Stefano Franceschini, Michele Ambrosanio, Angelo Gifuni, Giuseppe Grassini, Fabio Baselice   +4 more
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X-ray in-line holography and holotomography at the NanoMAX beamline

Journal of Synchrotron Radiation, 2022
Coherent X-ray imaging techniques, such as in-line holography, exploit the high brilliance provided by diffraction-limited storage rings to perform imaging sensitive to the electron density through contrast due to the phase shift, rather than ...
Sebastian Kalbfleisch, Yuhe Zhang, Maik Kahnt, Khachiwan Buakor, Max Langer, Till Dreier, Hanna Dierks, Philip Stjärneblad, Emanuel Larsson, Korneliya Gordeyeva, Lert Chayanun, Daniel Söderberg, Jesper Wallentin, Martin Bech, Pablo Villanueva-Perez   +14 more
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Holographic superresolution using spatial light modulator [PDF]

Journal of the European Optical Society-Rapid Publications, 2013
This paper describes a technique of superresolution using a reflective mode spatial light modulator, a coherent source of light, and a transmission mode object placed in the input plane of an imaging system, in particular we are using for the ...
Hussain A., Martínez J. L., Campos J.
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