Publication
Title
Demonstration of a 2 × 2 programmable phase plate for electrons
Author
Abstract
First results on the experimental realisation of a 2 ׫202F»2 programmable phase plate for electrons are presented. The design consists of an array of electrostatic elements that influence the phase of electron waves passing through 4 separately controllable aperture holes. This functionality is demonstrated in a conventional transmission electron microscope operating at 300 kV and results are in very close agreement with theoretical predictions. The dynamic creation of a set of electron probes with different phase symmetry is demonstrated, thereby bringing adaptive optics in TEM one step closer to reality. The limitations of the current design and how to overcome these in the future are discussed. Simulations show how further evolved versions of the current proof of concept might open new and exciting application prospects for beam shaping and aberration correction.
Language
English
Source (journal)
Ultramicroscopy. - Amsterdam
Publication
Amsterdam : 2018
ISSN
0304-3991
Volume/pages
190(2018), p. 58-65
ISI
000432868800007
Pubmed ID
29689445
Full text (Publisher's DOI)
Full text (open access)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Project info
Compressed sensing enabling low dose imaging in transmission electron microscopy.
Exploring electron vortex beams (VORTEX).
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 23.04.2018
Last edited 06.08.2021
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