Vasilyeu, RDudley, Angela LKhilo, NForbes, A2011-11-092011-11-092009-12Vasilyeu, R, Dudley, A, Khilo, N and Forbes, A. 2011. Generating superpositions of higher–order Bessel beams. Optics Express, Vol 17(26), pp 23389-233951094-4087http://www.opticsinfobase.org/abstract.cfm?uri=oe-17-26-23389http://hdl.handle.net/10204/5277This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found on the OSA website. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under lawThe authors report the first experimental generation of the superposition of higher-order Bessel beams, by means of a spatial light modulator (SLM) and a ring slit aperture. They present illuminating a ring slit aperture with light which has an azimuthal phase dependence, such that the field produced is a superposition of two or more higher-order Bessel beams. The experimentally produced fields are in good agreement with those calculated theoretically. The significance of these fields is that even though one is able to generate fields which carry zero orbital angular momentum, a rotation in the field’s intensity profile as it propagates is observed.enBessel beamsSpatial Light ModulatorRing slit aperturesOpticsArticleVasilyeu, R., Dudley, A. L., Khilo, N., & Forbes, A. (2009). Generating superpositions of higher–order Bessel beams [Journal article]. http://hdl.handle.net/10204/5277Vasilyeu, R, Angela L Dudley, N Khilo, and A Forbes "Generating superpositions of higher–order Bessel beams [Journal article]." (2009) http://hdl.handle.net/10204/5277Vasilyeu R, Dudley AL, Khilo N, Forbes A. Generating superpositions of higher–order Bessel beams [Journal article]. 2009; http://hdl.handle.net/10204/5277.TY - Article AU - Vasilyeu, R AU - Dudley, Angela L AU - Khilo, N AU - Forbes, A AB - The authors report the first experimental generation of the superposition of higher-order Bessel beams, by means of a spatial light modulator (SLM) and a ring slit aperture. They present illuminating a ring slit aperture with light which has an azimuthal phase dependence, such that the field produced is a superposition of two or more higher-order Bessel beams. The experimentally produced fields are in good agreement with those calculated theoretically. The significance of these fields is that even though one is able to generate fields which carry zero orbital angular momentum, a rotation in the field’s intensity profile as it propagates is observed. DA - 2009-12 DB - ResearchSpace DP - CSIR KW - Bessel beams KW - Spatial Light Modulator KW - Ring slit apertures KW - Optics LK - https://researchspace.csir.co.za PY - 2009 SM - 1094-4087 T1 - Generating superpositions of higher–order Bessel beams [Journal article] TI - Generating superpositions of higher–order Bessel beams [Journal article] UR - http://hdl.handle.net/10204/5277 ER -