Lavery, M.P.J. , Speirits, F.C. , Barnett, S.M. and Padgett, M.J. (2013) Detection of a spinning object using light's orbital angular momentum. Science, 341(6145), pp. 537-540. (doi: 10.1126/science.1239936)
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85025.pdf - Accepted Version 1MB |
Abstract
The linear Doppler shift is widely used to infer the velocity of approaching objects, but this shift does not detect rotation. By analyzing the orbital angular momentum of the light scattered from a spinning object, we observed a frequency shift proportional to product of the rotation frequency of the object and the orbital angular momentum of the light. This rotational frequency shift was still present when the angular momentum vector was parallel to the observation direction. The multiplicative enhancement of the frequency shift may have applications for the remote detection of rotating bodies in both terrestrial and astronomical settings.
Item Type: | Articles |
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Additional Information: | This is the author’s version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science on 341: 6145 2013, DOI: http://dx.doi.org/10.1126/science.1239936 |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Lavery, Professor Martin and Padgett, Professor Miles and Speirits, Dr Fiona and Barnett, Professor Stephen |
Authors: | Lavery, M.P.J., Speirits, F.C., Barnett, S.M., and Padgett, M.J. |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Science |
Publisher: | American Association for the Advancement of Science |
ISSN: | 0036-8075 |
ISSN (Online): | 1095-9203 |
Copyright Holders: | Copyright © 2013 American Association for the Advancement of Science |
First Published: | First published in Science 341(6145):537-540 |
Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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