Zobrazeno 1 - 10
of 245
pro vyhledávání: '"Marchesini Stefano"'
Autor:
Thayer Jana, Chen Zhantao, Claus Richard, Damiani Daniel, Ford Christopher, Dubrovin Mikhail, Elmir Victor, Kroeger Wilko, Li Xiang, Marchesini Stefano, Mariani Valerio, Melcchiori Riccardo, Nelson Silke, Peck Ariana, Perazzo Amedeo, Poitevin Frederic, O’Grady Christopher Paul, Otero Julieth, Quijano Omar, Shankar Murali, Uervirojnangkoorn Monarin, Veraldi Riccardo, Weaver Matthew, Weninger Clemens, Yamajala Seshu, Wang Cong, Yoon Chun Hong
Publikováno v:
EPJ Web of Conferences, Vol 295, p 13002 (2024)
The increasing volumes of data produced at light sources such as the Linac Coherent Light Source (LCLS) enable the direct observation of materials and molecular assemblies at the length and timescales of molecular and atomic motion. This exponential
Externí odkaz:
https://doaj.org/article/cc8c7579faa446e98839e02c9c6cf13c
Autor:
Kurzer-Ogul, Kelin, Haines, Brian M., Montgomery, David S., Pandolfi, Silvia, Sauppe, Joshua P., Leong, Andrew F. T., Hodge, Daniel, Kozlowski, Pawel M., Marchesini, Stefano, Cunningham, Eric, Galtier, Eric, Khaghani, Dimitri, Lee, Hae Ja, Nagler, Bob, Sandberg, Richard L., Gleason, Arianna E., Aluie, Hussein, Shang, Jessica K.
Shock-bubble interactions (SBI) are important across a wide range of physical systems. In inertial confinement fusion, interactions between laser-driven shocks and micro-voids in both ablators and foam targets generate instabilities that are a major
Externí odkaz:
http://arxiv.org/abs/2403.02684
In nanoscale imaging technique and ultrafast laser, the reconstruction procedure is normally formulated as a blind phase retrieval (BPR) problem, where one has to recover both the sample and the probe (pupil) jointly from phaseless data. This survey
Externí odkaz:
http://arxiv.org/abs/2211.06619
Autor:
Chang, Huibin, Glowinski, Roland, Marchesini, Stefano, Tai, Xue-cheng, Wang, Yang, Zeng, Tieyong
In ptychography experiments, redundant scanning is usually required to guarantee the stable recovery, such that a huge amount of frames are generated, and thus it poses a great demand of parallel computing in order to solve this large-scale inverse p
Externí odkaz:
http://arxiv.org/abs/2011.00162
Autor:
Marchesini, Stefano, Trivedi, Anuradha, Enfedaque, Pablo, Perciano, Talita, Parkinson, Dilworth
Tomographic imaging has benefited from advances in X-ray sources, detectors and optics to enable novel observations in science, engineering and medicine. These advances have come with a dramatic increase of input data in the form of faster frame rate
Externí odkaz:
http://arxiv.org/abs/2003.12677
Linear-dichroism is an important tool to characterize the transmission matrix and determine the crystal or orbital orientation in a material. In order to gain high resolution mapping of the transmission properties of such materials, we introduce the
Externí odkaz:
http://arxiv.org/abs/2002.04161
Publikováno v:
Journal of Applied Crystallography 53 (4), 2020
Spectroscopic ptychography is a powerful technique to determine the chemical composition of a sample with high spatial resolution. In spectro-ptychography, a sample is rastered through a focused x-ray beam with varying photon energy so that a series
Externí odkaz:
http://arxiv.org/abs/1906.00056
Recovering a signal from its Fourier magnitude is referred to as phase retrieval, which occurs in different fields of engineering and applied physics. This paper gives a new characterization of the phase retrieval problem. Particularly useful is the
Externí odkaz:
http://arxiv.org/abs/1904.10157
Publikováno v:
IEEE International Conference on Image Processing (ICIP), Taipei, Taiwan, 2019, pp. 2931-2935
In order to determine the 3D structure of a thick sample, researchers have recently combined ptychography (for high resolution) and tomography (for 3D imaging) in a single experiment. 2-step methods are usually adopted for reconstruction, where the p
Externí odkaz:
http://arxiv.org/abs/1902.05647
Autor:
Marchesini, Stefano, Sakdinawat, Anne
Publikováno v:
Optics Express Vol. 27, Issue 2, pp. 907-917 (2019)
Diffractive lenses fabricated by lithographic methods are one of the most popular image forming optics in the x-ray regime. Most commonly, binary diffractive optics, such as Fresnel zone plates are used due to their ability to focus at high resolutio
Externí odkaz:
http://arxiv.org/abs/1812.10138