Influence of finite spatial coherence on ptychographic reconstruction

X-ray ptychography is an ultrahigh-resolution scanning coherent diffractive imaging technique, allowing quantitative measurements of extended samples and a simultaneous reconstruction of the illuminating wavefront. Recent development of the mixed-state reconstruction algorithm has triggered a certai...

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Published in:Applied physics letters 2015-07, Vol.107 (1)
Main Authors: Stachnik, K., Mohacsi, I., Vartiainen, I., Stuebe, N., Meyer, J., Warmer, M., David, C., Meents, A.
Format: Article
Language:English
Subjects:
ALGORITHMS
Applied physics
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Coherence
ILLUMINANCE
Image reconstruction
MIXED STATE
MIXED STATES
SPATIAL RESOLUTION
X RADIATION
X ray sources
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cited_by cdi_FETCH-LOGICAL-c386t-26a2c81205431d1d0432439870dcb330d1af8698ea0c7760c39b580bad23c6733
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container_title Applied physics letters
container_volume 107
creator Stachnik, K.
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Meents, A.
description X-ray ptychography is an ultrahigh-resolution scanning coherent diffractive imaging technique, allowing quantitative measurements of extended samples and a simultaneous reconstruction of the illuminating wavefront. Recent development of the mixed-state reconstruction algorithm has triggered a certain interest in utilizing partially coherent X-ray sources for ptychography. Here, we study how finite spatial coherence influences the reconstructed image of a test structure. Our work shows that use of a highly coherent illumination provides images with better spatial resolution and fewer artefacts than the approach with partial coherence.
doi_str_mv 10.1063/1.4926328
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source American Institute of Physics (AIP) Publications; American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list)
subjects ALGORITHMS
Applied physics
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Coherence
ILLUMINANCE
Image reconstruction
MIXED STATE
MIXED STATES
SPATIAL RESOLUTION
X RADIATION
X ray sources
title Influence of finite spatial coherence on ptychographic reconstruction
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