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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Measurement of the orbital angular momentum density of light by modal decomposition
New Journal of Physics, Volume 15, Article 073025, Year 2013
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Description
We demonstrate a versatile method for the measurement of the orbital angular momentum (OAM) density of an optical field. By performing a modal decomposition with digital holograms, we reconstruct the full optical field from a small set of single-point intensity measurements, from which optical vortices, global OAM and OAM density can be derived. We validate the method on defined OAM-carrying beams yielding fidelities in the OAM density measurement of up to 99%, and subsequently apply the technique to unknown fields from optical fibers. © IOP Publishing and Deutsche Physikalische Gesellschaft.
Authors & Co-Authors
Schulze, Christian
Germany, Jena
Friedrich-schiller-universität Jena
Dudley, Angela
South Africa, Pretoria
The Council for Scientific and Industrial Research
Flamm, Daniel
Germany, Jena
Friedrich-schiller-universität Jena
Duparrè, Michael R.
Germany, Jena
Friedrich-schiller-universität Jena
Forbes, Andrew D.
South Africa, Pretoria
The Council for Scientific and Industrial Research
South Africa, Durban
University of Kwazulu-natal
Statistics
Citations: 108
Authors: 5
Affiliations: 3
Identifiers
Doi:
10.1088/1367-2630/15/7/073025