Rotation of electromagnetic fields and the nature of optical angular momentum

Stephen M. Barnett

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

The association of spin and orbital angular momenta of light with its polarization and helical phase fronts is now well established. The problems in linking this with electromagnetic theory, as expressed in Maxwell's equations, are rather less well known. We present a simple analysis of the problems involved in defining spin and orbital angular momenta for electromagnetic fields and discuss some of the remaining challenges. Crucial to our investigation is the duplex symmetry between the electric and magnetic fields.

LanguageEnglish
Pages1339-1343
Number of pages5
JournalJournal of Modern Optics
Volume57
Issue number14-15
Early online date9 Mar 2010
DOIs
Publication statusPublished - Aug 2010

Fingerprint

electromagnetic fields
angular momentum
orbitals
Maxwell equation
electromagnetism
electric fields
symmetry
polarization
magnetic fields

Keywords

  • optical angular momentum
  • light
  • radiation
  • beams
  • spin

Cite this

Barnett, Stephen M. / Rotation of electromagnetic fields and the nature of optical angular momentum. In: Journal of Modern Optics. 2010 ; Vol. 57, No. 14-15. pp. 1339-1343.
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Rotation of electromagnetic fields and the nature of optical angular momentum. / Barnett, Stephen M.

In: Journal of Modern Optics, Vol. 57, No. 14-15, 08.2010, p. 1339-1343.

Research output: Contribution to journalArticle

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