Optical helicity of interfering waves

Cameron, Robert and Barnett, Steve and Yao, Alison (2014) Optical helicity of interfering waves. Journal of Modern Optics, 61 (1). pp. 25-31. ISSN 0950-0340

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Official URL: https://doi.org/10.1080/09500340.2013.829874

Abstract

Helicity is a property of light which is familiar from particle physics but less well-known in optics. In this paper we recall the explicit form taken by the helicity of light within classical electromagnetic theory and reflect upon some of its remarkable characteristics. The helicity of light is related to, but is distinct from, the spin of light. To emphasise this fact, we draw a simple analogy between the helicity of light and electric charge and between the spin of light and electric current. We illustrate this and other observations by examining various superpositions of plane waves explicitly.

Creators(s):	Cameron, Robert ORCID: https://orcid.org/0000-0002-8809-5459, Barnett, Steve and Yao, Alison ORCID: https://orcid.org/0000-0002-6260-5852;
Item type:	Article
ID code:	46527
Keywords:	optical, helicity, interfering waves, property of light, particle physics, optics, Optics. Light, Atomic and Molecular Physics, and Optics
Subjects:	Science > Physics > Optics. Light
Department:	Faculty of Science > Physics
Depositing user:	Pure Administrator
Date deposited:	22 Jan 2014 11:37
Last modified:	20 Jan 2021 21:02
Related URLs:	Scopus publication
URI:	https://strathprints.strath.ac.uk/id/eprint/46527
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