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Measurement of flow vorticity with helical beams of light
dc.contributor.author | Belmonte Molina, Aniceto |
dc.contributor.author | Rosales Guzmán, Carmelo |
dc.contributor.author | Torres, Juan P. |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.date.accessioned | 2016-01-08T15:41:02Z |
dc.date.available | 2016-01-08T15:41:02Z |
dc.date.issued | 2015-11-20 |
dc.identifier.citation | Belmonte, A., Rosales, C., Torres, J. Measurement of flow vorticity with helical beams of light. "Optica", 20 Novembre 2015, vol. 2, núm. 11, p. 1002-1005. |
dc.identifier.issn | 2334-2536 |
dc.identifier.uri | http://hdl.handle.net/2117/81167 |
dc.description | © [2015 Optical Society of America.]. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. |
dc.description.abstract | It is possible to devise an experiment in which the local vorticity of a flow can be estimated by probing the fluid with Laguerre–Gauss (LG) beams, i.e., optical beams that show an azimuthal phase variation that is the origin of its characteristic nonzero orbital angular momentum. The key point is to make use of the transversal Doppler effect of the returned signal that depends only on the azimuthal component of the flow velocity along the ring-shaped observation beam. We found from a detailed analysis of the experimental method that probing the fluid with LG beams is an effective and simple sensing technique that is able to produce accurate estimates of flow vorticity. |
dc.format.extent | 4 p. |
dc.language.iso | eng |
dc.publisher | Optical Society of American (OSA) |
dc.subject | Àrees temàtiques de la UPC::Enginyeria electrònica::Instrumentació i mesura::Sensors i actuadors |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació |
dc.subject.lcsh | Doppler effect |
dc.subject.lcsh | Meteorological optics |
dc.subject.lcsh | Optical detectors |
dc.subject.other | Flow diagnostics |
dc.subject.other | Laser Doppler velocimetry |
dc.subject.other | Turbulence |
dc.subject.other | Optical sensing and sensors |
dc.subject.other | Atmospheric and oceanic optics |
dc.subject.other | Medical and biological imaging |
dc.title | Measurement of flow vorticity with helical beams of light |
dc.type | Article |
dc.subject.lemac | Doppler, Efecte |
dc.subject.lemac | Òptica meteorològica |
dc.subject.lemac | Detectors òptics |
dc.contributor.group | Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció |
dc.identifier.doi | 10.1364/OPTICA.2.001002 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | https://www.osapublishing.org/optica/abstract.cfm?uri=optica-2-11-1002 |
dc.rights.access | Open Access |
local.identifier.drac | 17360663 |
dc.description.version | Postprint (author's final draft) |
local.citation.author | Belmonte, A.; Rosales, C.; Torres, J. |
local.citation.publicationName | Optica |
local.citation.volume | 2 |
local.citation.number | 11 |
local.citation.startingPage | 1002 |
local.citation.endingPage | 1005 |
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