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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/6397

Title: Azimuthal decomposition with digital holograms
Authors: Litvin, IA
Dudley, A
Roux, FS
Forbes, A
Keywords: Azimuthal modes
Bessel beans
Digital holograms
Optical fields
Hermite-Gaussian beams
Issue Date: May-2012
Publisher: Optical Society of America
Citation: Litvin, I.A, Dudley, A, Roux, F.S and Forbes , A. 2012. Azimuthal decomposition with digital holograms. Optics Express, Vol. 20 (10), pp 10996-11004
Series/Report no.: Workflow;9697
Abstract: We demonstrate a simple approach, using digital holograms, to perform a complete azimuthal decomposition of an optical field. Importantly, we use a set of basis functions that are not scale dependent so that unlike other methods, no knowledge of the initial field is required for the decomposition. We illustrate the power of the method by decomposing two examples: superpositions of Bessel beams and Hermite-Gaussian beams (off-axis vortex). From the measured decomposition we show reconstruction of the amplitude, phase and orbital angular momentum density of the field with a high degree of accuracy.
Description: Copyright: 2012 Optical Society of America. This is an Open Access Journal. This journal authorizes the publication of the information herewith contained. Published in Optics Express, Vol. 20(10),pp 10996-11004
URI: http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-20-10-10996
http://hdl.handle.net/10204/6397
ISSN: 1094-4087
Appears in Collections:Laser physics and technology
General science, engineering & technology

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