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Main Title: Singleshot polychromatic coherent diffractive imaging with a high-order harmonic source
Author(s): Malm, Erik
Wikmark, Hampus
Pfau, Bastian
Villanueva-Perez, Pablo
Rudawski, Piotr
Peschel, Jasper
Maclot, Sylvain
Schneider, Michael
Eisebitt, Stefan
Mikkelsen, Anders
L’Huillier, Anne
Johnsson, Per
Type: Article
Language Code: en
Abstract: 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.
Issue Date: 2-Jan-2020
Date Available: 18-May-2020
DDC Class: 530 Physik
Subject(s): imaging
error reduction
alternating direction method of multipliers
XUV laser
Journal Title: Optics Express
Publisher: Optical Society of America (OSA)
Publisher Place: Washington, DC
Volume: 28
Issue: 1
Publisher DOI: 10.1364/OE.28.000394
Page Start: 394
Page End: 404
EISSN: 1094-4087
Notes: © 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.
Appears in Collections:FG Röntgenoptik und Nanometer-Optik » Publications

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