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Behavior of oblate spheroidal microparticles in a tightly focused optical vortex beam
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SYSNO ASEP 0434979 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Behavior of oblate spheroidal microparticles in a tightly focused optical vortex beam Author(s) Arzola, Alejandro V. (UPT-D) RID, SAI
Jákl, Petr (UPT-D) RID, ORCID, SAI
Chvátal, Lukáš (UPT-D) RID, ORCID, SAI
Šerý, Mojmír (UPT-D) RID, SAI
Zemánek, Pavel (UPT-D) RID, SAI, ORCIDNumber of authors 5 Source Title Optical Trapping and Optical Micromanipulation XI (Proceedings of SPIE 9164). - Bellingham : SPIE, 2014 - ISSN 0277-786X - ISBN 9781628411911 Pages 91640l:1-6 Number of pages 6 s. Publication form Online - E Action Optical Trapping and Optical Micromanipulation /11./ Event date 17.08.2014-21.08.2014 VEvent location San Diego Country US - United States Event type WRD Language eng - English Country US - United States Keywords Optical vortices ; Particles ; Polarization ; Spatial light modulators ; Laser beam propagation Subject RIV BH - Optics, Masers, Lasers R&D Projects LH12018 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LO1212 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) ED0017/01/01 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UPT-D - RVO:68081731 UT WOS 000349300600012 DOI 10.1117/12.2061628 Annotation We investigated the behavior of an oblate spheroidal polystyrene microparticle trapped in a focused vortex beam when the beam vorticity and polarization were modified. We demonstrated that such particles can be trapped in three dimensions, spin in a circularly polarized beam and an optical vortex beam around the axis parallel to the beam propagation. We compared the immediate frequencies and showed that contribution from the circularly polarized beam is one order of magnitude weaker comparing to the beam angular orbital momentum. Using a phase-only spatial light modulator we generated several vortex beam traps with well-defined parameters. Measuring the rotations of trapped spheroids we observed hydrodynamic phase and frequency locking for certain sets of beam parameters. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2015
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