Efficient sorting of orbital angular momentum states of light

Berkhout, G. C.G., Lavery, M. P.J., Courtial, J. , Beijersbergen, M. W. and Padgett, M. J. (2010) Efficient sorting of orbital angular momentum states of light. Physical Review Letters, 105(15), 153601. (doi:10.1103/PhysRevLett.105.153601)

Full text not currently available from Enlighten.

Abstract

We present a method to efficiently sort orbital angular momentum (OAM) states of light using two static optical elements. The optical elements perform a Cartesian to log-polar coordinate transformation, converting the helically phased light beam corresponding to OAM states into a beam with a transverse phase gradient. A subsequent lens then focuses each input OAM state to a different lateral position. We demonstrate the concept experimentally by using two spatial light modulators to create the desired optical elements, applying it to the separation of eleven OAM states.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Lavery, Dr Martin and Padgett, Professor Miles and Courtial, Dr Johannes
Authors: Berkhout, G. C.G., Lavery, M. P.J., Courtial, J., Beijersbergen, M. W., and Padgett, M. J.
College/School:College of Science and Engineering > School of Physics and Astronomy
College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Physical Review Letters
Publisher:American Physical Society
ISSN:0031-9007
ISSN (Online):1079-7114
Published Online:04 October 2010

University Staff: Request a correction | Enlighten Editors: Update this record