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Vitality of optical vortices

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dc.contributor.author Roux, FS
dc.date.accessioned 2014-07-30T09:14:00Z
dc.date.available 2014-07-30T09:14:00Z
dc.date.issued 2014-02
dc.identifier.citation Roux, F.S. 2014. Vitality of optical vortices. In: Complex Light and Optical Force VIII, SPIE Photonics West 2014, Moscone Center, San Francisco, California USA, 5 February 2014 en_US
dc.identifier.uri http://spie.org/Publications/Proceedings/Paper/10.1117/12.2038815
dc.identifier.uri http://hdl.handle.net/10204/7530
dc.description Complex Light and Optical Force VIII, SPIE Photonics West 2014, Moscone Center, San Francisco, California USA, 5 February 2014 en_US
dc.description.abstract Optical vortices are always created or annihilated in pairs with opposite topological charges. However, the presence of such a vortex dipole does not directly indicate whether they are associated with a creation or an annihilation event. Here we propose a method to distinguish between vortex dipoles that have just been created and those that are about to be annihilated. We use first and second order transverse derivatives of the optical field to construct a quantity that reveals the nature of the dipoles. Numerical examples are provided as demonstration of the method. en_US
dc.language.iso en en_US
dc.publisher SPIE Proceedings en_US
dc.relation.ispartofseries Workflow;13110
dc.subject Optical vortex dipole en_US
dc.subject Vortex pair annihilation en_US
dc.subject Vortex pair creation en_US
dc.subject Vorticity en_US
dc.title Vitality of optical vortices en_US
dc.type Conference Presentation en_US
dc.identifier.apacitation Roux, F. (2014). Vitality of optical vortices. SPIE Proceedings. http://hdl.handle.net/10204/7530 en_ZA
dc.identifier.chicagocitation Roux, FS. "Vitality of optical vortices." (2014): http://hdl.handle.net/10204/7530 en_ZA
dc.identifier.vancouvercitation Roux F, Vitality of optical vortices; SPIE Proceedings; 2014. http://hdl.handle.net/10204/7530 . en_ZA
dc.identifier.ris TY - Conference Presentation AU - Roux, FS AB - Optical vortices are always created or annihilated in pairs with opposite topological charges. However, the presence of such a vortex dipole does not directly indicate whether they are associated with a creation or an annihilation event. Here we propose a method to distinguish between vortex dipoles that have just been created and those that are about to be annihilated. We use first and second order transverse derivatives of the optical field to construct a quantity that reveals the nature of the dipoles. Numerical examples are provided as demonstration of the method. DA - 2014-02 DB - ResearchSpace DP - CSIR KW - Optical vortex dipole KW - Vortex pair annihilation KW - Vortex pair creation KW - Vorticity LK - https://researchspace.csir.co.za PY - 2014 T1 - Vitality of optical vortices TI - Vitality of optical vortices UR - http://hdl.handle.net/10204/7530 ER - en_ZA


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