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

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...

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Veröffentlicht in:	Micron (Oxford, England : 1993) England : 1993), 2024-10, Vol.185, p.103688, Article 103688
Hauptverfasser:	Leidl, Max Leo, Diederichs, Benedikt, Sachse, Carsten, Müller-Caspary, Knut
Format:	Artikel
Sprache:	eng
Schlagworte:	4D-STEM Low-dose TEM Phase retrieval Transmission electron microscopy
Online-Zugang:	Volltext
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