Efficient measurement of an optical orbital-angular-momentum spectrum comprising more than 50 states

Lavery, M.P.J.; Robertson, D.J.; Sponselli, A.; Courtial, J.; Steinhoff, N.K.; Tyler, G.A.; Wilner, A.E.; Padgett, M.J.

doi:10.1088/1367-2630/15/1/013024

Efficient measurement of an optical orbital-angular-momentum spectrum comprising more than 50 states

Lavery, M.P.J.; Robertson, D.J.; Sponselli, A.; Courtial, J.; Steinhoff, N.K.; Tyler, G.A.; Wilner, A.E.; Padgett, M.J.

Authors

M.P.J. Lavery

D.J. Robertson

A. Sponselli

J. Courtial

N.K. Steinhoff

G.A. Tyler

A.E. Wilner

M.J. Padgett

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.

Citation

Lavery, M., Robertson, D., Sponselli, A., Courtial, J., Steinhoff, N., Tyler, G., …Padgett, M. (2013). Efficient measurement of an optical orbital-angular-momentum spectrum comprising more than 50 states. New Journal of Physics, 15(1), Article 013024. https://doi.org/10.1088/1367-2630/15/1/013024

Journal Article Type	Article
Publication Date	Jan 14, 2013
Deposit Date	Mar 19, 2013
Publicly Available Date	Sep 11, 2015
Journal	New Journal of Physics
Publisher	IOP Publishing
Peer Reviewed	Peer Reviewed
Volume	15
Issue	1
Article Number	013024
DOI	https://doi.org/10.1088/1367-2630/15/1/013024

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