Litvin, IADudley, Angela LForbes, A2011-10-062011-10-062011-08Litvin, IA, Dudley, A and Forbes, A. 2011. Poynting vector and orbital angular momentum density of superpositions of Bessel beams. Optics Express, Vol 19(18), pp 16760-167711094-4087http://www.opticsinfobase.org/view_article.cfm?gotourl=http%3A%2F%2Fwww%2Eopticsinfobase%2Eorg%2FDirectPDFAccess%2F7AED080A%2DC77A%2DB85C%2D247AF11332E61836%5F221865%2Epdf%3Fda%3D1%26id%3D221865%26seq%3D0%26mobile%3Dno&org=http://hdl.handle.net/10204/5202Copyright: 2011 Optical Society of AmericaThe authors 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. They demonstrate the theory in the laboratory by creating superpositions of nondiffracting 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.enOptical vorticesOrbital angular momentumQuantum OpticsBessel beamsOptical trappingOptical tweezingArticleLitvin, I., Dudley, A. L., & Forbes, A. (2011). Poynting vector and orbital angular momentum density of superpositions of Bessel beams. http://hdl.handle.net/10204/5202Litvin, IA, Angela L Dudley, and A Forbes "Poynting vector and orbital angular momentum density of superpositions of Bessel beams." (2011) http://hdl.handle.net/10204/5202Litvin I, Dudley AL, Forbes A. Poynting vector and orbital angular momentum density of superpositions of Bessel beams. 2011; http://hdl.handle.net/10204/5202.TY - Article AU - Litvin, IA AU - Dudley, Angela L AU - Forbes, A AB - The authors 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. They demonstrate the theory in the laboratory by creating superpositions of nondiffracting 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. DA - 2011-08 DB - ResearchSpace DP - CSIR KW - Optical vortices KW - Orbital angular momentum KW - Quantum Optics KW - Bessel beams KW - Optical trapping KW - Optical tweezing LK - https://researchspace.csir.co.za PY - 2011 SM - 1094-4087 T1 - Poynting vector and orbital angular momentum density of superpositions of Bessel beams TI - Poynting vector and orbital angular momentum density of superpositions of Bessel beams UR - http://hdl.handle.net/10204/5202 ER -