Electron beams with a twist

L. Clark, S Lloyd, M Babiker, J Yuan

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

6 Citations (Scopus)


The properties and behaviour of electron beams possessing orbital angular momentum are considered. Methods of their creation are discussed, but we concentrate mainly on the method involving binarized holographic masks. It is shown how suitable masks can be modelled using Bessel functions as well as Laguerre-Gaussian functions. The theoretical far-field diffraction patterns of these holograms are simulated using Fourier transform techniques and compared with the recently reported experimental results of electron vortex beams. The limitations of the masks and the potential of the technique for future research are pointed out and discussed.

Original languageEnglish
Title of host publicationJournal of Physics
Subtitle of host publicationConference Series
EditorsIan MacLaren
PublisherIOP Publishing
Number of pages4
Publication statusPublished - 2012
Externally publishedYes
EventInstitute-of-Physics-Electron-Microscopy and Analysis-Group Conference (EMAG) 2011 - The University of Birmingham, Birmingham, United Kingdom
Duration: 6 Sept 20119 Sept 2011

Publication series

NameJournal of Physics: Conference Series
PublisherIOP Publishing
ISSN (Print)1742-6588
ISSN (Electronic)1742-6596


ConferenceInstitute-of-Physics-Electron-Microscopy and Analysis-Group Conference (EMAG) 2011
Abbreviated titleEMAG 2011
Country/TerritoryUnited Kingdom
Internet address

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