Influence of loss function and electron dose on ptychography of 2D materials using the Wirtinger flow.

4D-STEM Low-dose TEM Phase retrieval Transmission electron microscopy

Journal

Micron (Oxford, England : 1993)
ISSN: 1878-4291
Titre abrégé: Micron
Pays: England
ID NLM: 9312850

Informations de publication

Date de publication:
08 Jul 2024
Historique:
received: 12 04 2024
revised: 21 06 2024
accepted: 01 07 2024
medline: 12 7 2024
pubmed: 12 7 2024
entrez: 11 7 2024
Statut: aheadofprint

Résumé

Iterative phase retrieval is based on minimising a loss function as a measure of the consistency of an initial guess and underlying experimental data. Under ideal experimental conditions, real data contains Poissonian noise due to counting statistics. In this work, we use the Wirtinger Flow concept in combination with four common loss functions, being the L

Identifiants

DOI: 10.1016/j.micron.2024.103688 PMID: 38991624
pubmed: 38991624
pii: S0968-4328(24)00105-7
doi: 10.1016/j.micron.2024.103688
pii:
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

103688

Informations de copyright

Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.

Déclaration de conflit d'intérêts

Declaration of Competing Interest The authors declare no competing financial interests.

Auteurs

Max Leo Leidl (ML)

Department of Chemistry and Centre for NanoScience, Ludwig-Maximilians-University Munich, Butenandtstrasse 11, Munich 81377, Germany; Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons (ER-C-1), Physics of Nanoscale Systems, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, Jülich 52425, Germany; Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons (ER-C-3), Structural Biology, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, Jülich 52425, Germany.

Benedikt Diederichs (B)

Department of Chemistry and Centre for NanoScience, Ludwig-Maximilians-University Munich, Butenandtstrasse 11, Munich 81377, Germany; Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Ingolstädter Landstr. 1, Neuherberg 85764, Germany.

Carsten Sachse (C)

Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons (ER-C-3), Structural Biology, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, Jülich 52425, Germany; Department Biology, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, Düsseldorf 40225, Germany.

Knut Müller-Caspary (K)

Department of Chemistry and Centre for NanoScience, Ludwig-Maximilians-University Munich, Butenandtstrasse 11, Munich 81377, Germany; Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons (ER-C-1), Physics of Nanoscale Systems, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, Jülich 52425, Germany. Electronic address: k.mueller-caspary@cup.lmu.de.

Classifications MeSH