Measuring orbital angular momentum superpositions of light by mode transformation

Gregorius C G Berkhout; Martin P J Lavery; Miles J Padgett; Marco W Beijersbergen

doi:10.1364/OL.36.001863

Measuring orbital angular momentum superpositions of light by mode transformation

Opt Lett. 2011 May 15;36(10):1863-5. doi: 10.1364/OL.36.001863.

Authors

Gregorius C G Berkhout¹, Martin P J Lavery, Miles J Padgett, Marco W Beijersbergen

Affiliation

¹ Huygens Laboratory, Leiden University, P.O. Box 9504, 2300 RA Leiden, The Netherlands. j.berkhout@cosine.nl

PMID: 21593916
DOI: 10.1364/OL.36.001863

Abstract

We recently reported on a method for measuring orbital angular momentum (OAM) states of light based on the transformation of helically phased beams to tilted plane waves [Phys. Rev. Lett.105, 153601 (2010)]. Here we consider the performance of such a system for superpositions of OAM states by measuring the modal content of noninteger OAM states and beams produced by a Heaviside phase plate.