guest ::
| Home > Publications database > Inverse Multislice Ptychography by Layer-wise Optimisation and Sparse Matrix Decomposition |
| Home > Publications database > Inverse Multislice Ptychography by Layer-wise Optimisation and Sparse Matrix Decomposition |
| Journal Article | FZJ-2022-04494 |
; ; ; ; ; ; ;
2022
IEEE
[New York, NY]
This record in other databases: 
Please use a persistent id in citations: http://hdl.handle.net/2128/32764 doi:10.1109/TCI.2022.3218993
Abstract: We propose algorithms based on an optimisation method for inverse multislice ptychography in, e.g. electron microscopy. The multislice method is widely used to model the interaction between relativistic electrons and thick specimens. Since only the intensity of diffraction patterns can be recorded, the challenge in applying inverse multislice ptychography is to uniquely reconstruct the electrostatic potential in each slice up to some ambiguities. In this conceptual study, we show that a unique separation of atomic layers for simulated data is possible when considering a low acceleration voltage. We also introduce an adaptation for estimating the illuminating probe. For the sake of practical application, we finally present slice reconstructions using experimental 4D scanning transmission electron microscopy (STEM) data.
; 
; 
; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection
|
The record appears in these collections: |
PDF
Fulltext by OpenAccess repository