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research
Singleshot polychromatic coherent diffractive imaging with a high-order harmonic source
Authors
Stefan Eisebitt
Per Johnsson
+10 more
Anne L’Huillier
Sylvain Maclot
Erik Malm
Anders Mikkelsen
Jasper Peschel
Bastian Pfau
Piotr Rudawski
Michael Schneider
Pablo Villanueva-Perez
Hampus Wikmark
Publication date
1 January 2020
Publisher
Doi
Cite
Abstract
© 2020 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.Singleshot polychromatic coherent diffractive imaging is performed with a high-intensity high-order harmonic generation source. The coherence properties are analyzed and several reconstructions show the shot-to-shot fluctuations of the incident beam wavefront. The method is based on a multi-step approach. First, the spectrum is extracted from double-slit diffraction data. The spectrum is used as input to extract the monochromatic sample diffraction pattern, then phase retrieval is performed on the quasi-monochromatic data to obtain the sample’s exit surface wave. Reconstructions based on guided error reduction (ER) and alternating direction method of multipliers (ADMM) are compared. ADMM allows additional penalty terms to be included in the cost functional to promote sparsity within the reconstruction
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DepositOnce
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oai:depositonce.tu-berlin.de:1...
Last time updated on 27/05/2020
Lund University Publications
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Repositorium für Naturwissenschaften und Technik
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Last time updated on 23/07/2022