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Polarization-resolved dual-view holographic system for 3D inspection of scattering particles
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0003-0398-1919
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0001-8355-2414
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0003-4879-8261
2019 (English)In: Applied Optics, ISSN 1559-128X, E-ISSN 2155-3165, Vol. 58, no 34, p. G31-G40Article in journal (Refereed) Published
Abstract [en]

A novel dual-view polarization-resolved pulsed holographic system for particle measurements is presented. Both dual-view configuration and polarization-resolved registration are well suited for particle holography. Dual-view registration improves the accuracy in the detection of 3D position and velocities, and polarization-resolved registration provides polarization information about individual particles. The necessary calibrations are presented, and aberrations are compensated for by mapping the positions in the two views to positions in a global coordinate system. The system is demonstrated on a sample consisting of 7 μm spherical polystyrene particles dissolved in water in a cuvette. The system is tested with different polarizations of the illumination. It is found that the dual view improves the accuracy significantly in particle tracking. It is also found that by having polarization-resolved holograms, it is possible to separate naturally occurring sub-micrometer particles from the larger, 7 μm seeding particles.

Place, publisher, year, edition, pages
The Optical Society , 2019. Vol. 58, no 34, p. G31-G40
National Category
Atom and Molecular Physics and Optics Applied Mechanics
Research subject
Experimental Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-76067DOI: 10.1364/AO.58.000G31OAI: oai:DiVA.org:ltu-76067DiVA, id: diva2:1352778
Funder
Swedish Research Council, 621-2014-4906
Note

Validerad;2019;Nivå 2;2019-09-23 (johcin)

Available from: 2019-09-19 Created: 2019-09-19 Last updated: 2019-09-23Bibliographically approved

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Öhman, JohanGren, PerSjödahl, Mikael

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