Boundary element method for optical force calibration in microfluidic dual-beam optical trap

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buir.contributor.authorBıyıklı, Necmi
dc.citation.volumeNumber9548en_US
dc.contributor.authorSolmaz, Mehmet E.en_US
dc.contributor.authorÇetin, Barbarosen_US
dc.contributor.authorBaranoglu, B.en_US
dc.contributor.authorSerhatloglu, Muraten_US
dc.contributor.authorBıyıklı, Necmien_US
dc.coverage.spatialSan Diego, California, United Statesen_US
dc.date.accessioned2016-02-08T12:12:15Z
dc.date.available2016-02-08T12:12:15Z
dc.date.issued2015en_US
dc.departmentDepartment of Mechanical Engineeringen_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.descriptionConference name: Proceedings of SPIE, Optical Trapping and Optical Micromanipulation XIIen_US
dc.descriptionDate of Conference: 9–12 August 2015en_US
dc.description.abstractThe potential use of optical forces in microfluidic environment enables highly selective bio-particle manipulation. Manipulation could be accomplished via trapping or pushing a particle due to optical field. Empirical determination of optical force is often needed to ensure efficient operation of manipulation. The external force applied to a trapped particle in a microfluidic channel is a combination of optical and drag forces. The optical force can be found by measuring the particle velocity for a certain laser power level and a multiplicative correction factor is applied for the proximity of the particle to the channel surface. This method is not accurate especially for small microfluidic geometries where the particle size is in Mie regime and is comparable to channel cross section. In this work, we propose to use Boundary Element Method (BEM) to simulate fluid flow within the micro-channel with the presence of the particle to predict drag force. Pushing experiments were performed in a dual-beam optical trap and particlea's position information was extracted. The drag force acting on the particle was then obtained using BEM and other analytical expressions, and was compared to the calculated optical force. BEM was able to predict the behavior of the optical force due to the inclusion of all the channel walls. © 2015 SPIE.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T12:12:15Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2015en
dc.identifier.doi10.1117/12.2190319en_US
dc.identifier.issn0277-786X
dc.identifier.urihttp://hdl.handle.net/11693/28141
dc.language.isoEnglishen_US
dc.publisherSPIEen_US
dc.relation.isversionofhttp://dx.doi.org/10.1117/12.2190319en_US
dc.source.titleProceedings of SPIEen_US
dc.subjectMicrouidicsen_US
dc.subjectDragen_US
dc.subjectFlow of fluidsen_US
dc.subjectLaser opticsen_US
dc.subjectMicrofluidicsen_US
dc.subjectMicromanipulatorsen_US
dc.subjectParticle sizeen_US
dc.subjectSailing vesselsen_US
dc.subjectVelocity controlen_US
dc.subjectAnalytical expressionsen_US
dc.subjectChannel cross sectionen_US
dc.subjectMicrofluidic environmenten_US
dc.subjectMicrofluidic geometryen_US
dc.subjectMicrouidicsen_US
dc.subjectMultiplicative correctionsen_US
dc.subjectOptical forceen_US
dc.subjectOpticaltrappingen_US
dc.subjectBoundary element methoden_US
dc.titleBoundary element method for optical force calibration in microfluidic dual-beam optical trapen_US
dc.typeConference Paperen_US

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