, B.
, Agrawal, A.
, Anderson, I.
, Herzing, A.
, Lezec, H.
, McClelland, J.
and Unguris, J.
(2011),
Electron Vortex Beams with High Quanta of Orbital Angular Momentum, Science, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=906991
(Accessed November 21, 2024)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Electron Vortex Beams with High Quanta of Orbital Angular Momentum
Published
Author(s)
, , , , , ,
Abstract
Analogous to vortices in light optical beams, electron optical beams with helical wavefronts carry orbital angular momentum and promise new capabilities for electron microscopy and other applications. We use nanofabricated diffraction holograms in an electron microscope to produce multiple electron vortex beams with well-defined topological charge. Beams carrying up to 100 quanta, , of orbital angular momentum per electron are observed, demonstrating that a charged massive particle can exhibit stable quantized orbital motion in free space in the absence of any confining potential or external field. Quantized electron vortices open interesting new avenues in physics and provides novel opportunities in electron microscopy and magnetic imaging.Citation
Science
Volume
331
Pub Type
Journals
Download Paper
Keywords
electron vortex, optical vortex, Laguerre-Gaussian, electron holography
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.
Created January 14, 2011, Updated February 19, 2017