Poynting vector and orbital angular momentum density of superpositions of Bessel beams

PLUTO / PLUTO-2 Spatial Light Modulators
Microscopy
Published on:
Authors: Igor A. Litvin, Angela Dudley, and Andrew Forbes
Abstract:
“We study theoretically the orbital angular momentum (OAM) density in arbitrary scalar optical fields, and outline a simple approach using only a spatial light modulator to measure this density. We demonstrate the theory in the laboratory by creating superpositions of non-diffracting Bessel beams with digital holograms, and find that the OAM distribution in the superposition field matches the predicted values. Knowledge of the OAM distribution has relevance in optical trapping and tweezing, and quantum information processing.”

Open Access

Publication: Optics Express
Issue/Year: Optics Express, Vol. 19, Issue 18, pp. 16760-16771 (2011)
DOI: 10.1364/OE.19.016760
Link: https://doi.org/10.1364/OE.19.016760

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