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37 papers
Fast Iterative Algorithms for Blind Phase Retrieval: A survey
Huibin Chang, Li Yang, Stefano Marchesini
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…
In-situ observation of the formation of laser-induced periodic surface structures with extreme spatial and temporal resolution
K. Sokolowski-Tinten, J. Bonse, A. Barty +12
Irradiation of solid surfaces with intense ultrashort laser pulses represents a unique way of depositing energy into materials. It allows to realize states of extreme electronic ex…
Overlapping Domain Decomposition Methods for Ptychographic Imaging
Huibin Chang, Roland Glowinski, Stefano Marchesini +3
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 dem…
Sparse Matrix-Based HPC Tomography
Stefano Marchesini, Anuradha Trivedi, Pablo Enfedaque +2
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 w…
Analyzer Free Linear Dichroic Ptychography
Huibin Chang, Matthew A Marcus, Stefano Marchesini
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 mappi…
Iterative X-ray Spectroscopic Ptychography
Huibin Chang, Ziqin Rong, Pablo Enfedaque +1
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 thr…