Lavery, M. P. J., Robertson, D. J., Sponselli, A., Courtial, J. , Steinhoff, N. K., Tyler, G. A., Wilner, A. E. and Padgett, M. J. (2013) Efficient measurement of an optical orbital-angular-momentum spectrum comprising more than 50 states. New Journal of Physics, 15(1), 013024. (doi: 10.1088/1367-2630/15/1/013024)
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Abstract
A light beam may be separated into its orbital-angular momentum (OAM) components by a geometric optical transformation that converts each OAM component into a plane wave with a transverse phase gradient. Subsequent focusing produces a spot the lateral position of which is proportional to the input OAM state (Lavery et al 2012 Opt. Express 20 3). In this paper, we improve this approach, extending the measurement bandwidth to >50 OAM states and showing a simultaneous measurement of the radial coordinate.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Padgett, Professor Miles and Courtial, Dr Johannes |
Authors: | Lavery, M. P. J., Robertson, D. J., Sponselli, A., Courtial, J., Steinhoff, N. K., Tyler, G. A., Wilner, A. E., and Padgett, M. J. |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | New Journal of Physics |
Publisher: | Institute of Physics Publishing Ltd. |
ISSN: | 1367-2630 |
ISSN (Online): | 1367-2630 |
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