Show simple item record

dc.contributor.authorYáñez Alvarado, Carlos René
dc.contributor.authorAzcona Guerrero, Francisco Javier
dc.contributor.authorRoyo Royo, Santiago
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Enginyeria Òptica
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Òptica i Optometria
dc.date.accessioned2019-10-15T08:10:55Z
dc.date.available2019-10-15T08:10:55Z
dc.date.issued2019-08-19
dc.identifier.citationYañez, C.; Azcona, F.; Royo, S. Confocal flowmeter based on self-mixing interferometry for real-time velocity profiling of turbid liquids flowing in microcapillaries. "Optics express", 19 Agost 2019, vol. 27, núm. 17, p. 24340-24352.
dc.identifier.issn1094-4087
dc.identifier.urihttp://hdl.handle.net/2117/170086
dc.description.abstractWe propose a new confocal device for flow profiling in microcapillaries. A viewfinder system is developed using a visible light microscope, allowing focusing with high precision an 830 nm Fabry-Perot laser diode on a microchannel. By means of a novel confocal approach, the Doppler shift produced by the particles of a turbid liquid moving in the focal plane can be measured in real time using the well-known self-mixing effect. The resolution of this device is characterized in function of the full width at half maximum of the Gaussian frequency peak related to the self-mixing signal in the frequency domain. Velocity measurements for flow rates from 0.2 to 1.6 mL/min are presented, and the results demonstrate that the method reduces the phase noise and the effects of the out-of-focus particles, allowing straightforward flow profiling in microchannel structures
dc.format.extent13 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Ciències de la visió::Òptica física
dc.subject.lcshLaser interferometry
dc.subject.lcshFlow meters
dc.subject.otherDoppler effect
dc.subject.otherFiber lasers
dc.subject.otherLaser beams
dc.subject.otherLaser sources
dc.subject.otherOptical components
dc.subject.otherOptical feedback
dc.titleConfocal flowmeter based on self-mixing interferometry for real-time velocity profiling of turbid liquids flowing in microcapillaries
dc.typeArticle
dc.subject.lemacInterferometria làser
dc.subject.lemacFluids -- Mesurament
dc.contributor.groupUniversitat Politècnica de Catalunya. GREO - Grup de Recerca en Enginyeria Òptica
dc.identifier.doi10.1364/OE.27.024340
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.osapublishing.org/oe/abstract.cfm?uri=oe-27-17-24340
dc.rights.accessOpen Access
local.identifier.drac25820209
dc.description.versionPostprint (published version)
local.citation.authorYañez, C.; Azcona, F.; Royo, S.
local.citation.publicationNameOptics express
local.citation.volume27
local.citation.number17
local.citation.startingPage24340
local.citation.endingPage24352


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder