Crimin, F. , Mackinnon, N., Goette, J. B. and Barnett, S. M. (2019) Optical helicity and chirality: conservation and sources. Applied Sciences, 9(5), 828. (doi: 10.3390/app9050828)
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Abstract
We consider the helicity and chirality of the free electromagnetic field, and advocate the former as a means of characterising the interaction of chiral light with matter. This is in view of the intuitive quantum form of the helicity density operator, and of the dual symmetry transformation generated by its conservation. We go on to review the form of the helicity density and its associated continuity equation in free space, in the presence of local currents and charges, and upon interaction with bulk media, leading to characterisation of both microscopic and macroscopic sources of helicity.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Mackinnon, Mr Neel and Crimin, Dr Frances and Goette, Dr Joerg and Barnett, Professor Stephen |
Authors: | Crimin, F., Mackinnon, N., Goette, J. B., and Barnett, S. M. |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Applied Sciences |
Publisher: | MDPI |
ISSN: | 2076-3417 |
ISSN (Online): | 2076-3417 |
Copyright Holders: | Copyright © 2019 The Authors |
First Published: | First published in Applied Sciences 9(5):828 |
Publisher Policy: | Reproduced under a Creative Commons License |
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