Litvin, IADudley, Angela LRoux, FSForbes, A2012-12-052012-12-052012-05Litvin, I.A, Dudley, A.L., Roux, F.S and Forbes , A. 2012. Azimuthal decomposition with digital holograms. Optics Express, Vol. 20 (10), pp 10996-110041094-4087http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-20-10-10996http://hdl.handle.net/10204/6397Copyright: 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 10996-11004We 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.enAzimuthal modesBessel beansDigital hologramsOptical fieldsHermite-Gaussian beamsArticleLitvin, I., Dudley, A. L., Roux, F., & Forbes, A. (2012). Azimuthal decomposition with digital holograms. http://hdl.handle.net/10204/6397Litvin, IA, Angela L Dudley, FS Roux, and A Forbes "Azimuthal decomposition with digital holograms." (2012) http://hdl.handle.net/10204/6397Litvin I, Dudley AL, Roux F, Forbes A. Azimuthal decomposition with digital holograms. 2012; http://hdl.handle.net/10204/6397.TY - Article AU - Litvin, IA AU - Dudley, Angela L AU - Roux, FS AU - Forbes, A AB - 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. DA - 2012-05 DB - ResearchSpace DP - CSIR KW - Azimuthal modes KW - Bessel beans KW - Digital holograms KW - Optical fields KW - Hermite-Gaussian beams LK - https://researchspace.csir.co.za PY - 2012 SM - 1094-4087 T1 - Azimuthal decomposition with digital holograms TI - Azimuthal decomposition with digital holograms UR - http://hdl.handle.net/10204/6397 ER -