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Cited by 531

The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.

Optical currents

Berry, M V·2009·Journal of Optics A: Pure and Applied Optics

Abstract

For scalar light, the current is the familiar expectation value of the intensity-weighted momentum operator. Current is distinct from the local wavevector (not weighted) that could be observed by means of quantum weak measurement. For vector light, the current (Poynting vector) contains an additional term corresponding to the photon spin, recently identified for paraxial light by Bekshaev and Soskin but valid generally after a modification to restore 'electric–magnetic democracy'; this term has physical consequences. A number of examples demonstrate that there is usually no connection between optical vortices and angular momentum, and between C singularities and angular momentum. The optical wave current is distinct from the rays of geometrical optics in all nontrivial cases.

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Metadata

Authors
Berry, M. V.
Venue
Journal of Optics A: Pure and Applied Optics
Published
2009-08-04
Volume
11
Issue
9
Pages
094001
ISSN
  • 1464-4258 (ISSN-L)
  • 1741-3567
OpenAlex
W4232668442
Cited by
531
References
32
FWCI
10.22
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Optical currents. https://app.cochat.ai/papers/10.1088/1464-4258/11/9/094001
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Berry, M. V. (2009). Optical currents. Journal of Optics A: Pure and Applied Optics. https://doi.org/10.1088/1464-4258/11/9/094001

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.