Speirits, F. C. and Barnett, S. M. (2013) Do waves carrying orbital angular momentum possess azimuthal linear momentum? Physical Review Letters, 111(10), p. 103602. (doi: 10.1103/PhysRevLett.111.103602)
|
Text
89027.pdf - Published Version Available under License Creative Commons Attribution. 143kB |
Abstract
All beams are a superposition of plane waves, which carry linear momentum in the direction of propagation with no net azimuthal component. However, plane waves incident on a hologram can produce a vortex beam carrying orbital angular momentum that seems to require an azimuthal linear momentum, which presents a paradox. We resolve this by showing that the azimuthal momentum is not a true linear momentum but the azimuthal momentum density is a true component of the linear momentum density.
Item Type: | Articles |
---|---|
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Speirits, Dr Fiona and Barnett, Professor Stephen |
Authors: | Speirits, F. C., and Barnett, S. M. |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Physical Review Letters |
Publisher: | American Physical Society |
ISSN: | 0031-9007 |
ISSN (Online): | 1079-7114 |
Copyright Holders: | Copyright © 2013 The Authors |
First Published: | First published in Physical Review Letters 111(10):103602 |
Publisher Policy: | Reproduced under a Creative Commons License |
University Staff: Request a correction | Enlighten Editors: Update this record