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Optical binding of polystyrene particles in tractor beam

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    SYSNO ASEP0494359
    Document TypeC - Proceedings Paper (int. conf.)
    R&D Document TypeConference Paper
    TitleOptical binding of polystyrene particles in tractor beam
    Author(s) Damková, Jana (UPT-D) RID, ORCID, SAI
    Chvátal, Lukáš (UPT-D) RID, ORCID, SAI
    Oulehla, Jindřich (UPT-D) RID, ORCID, SAI
    Ježek, Jan (UPT-D) RID, ORCID, SAI
    Brzobohatý, Oto (UPT-D) RID, ORCID, SAI
    Zemánek, Pavel (UPT-D) RID, SAI, ORCID
    Number of authors6
    Source TitleRecent Trends in Charged Particle Optics and Surface Physics Instrumentation. Proceedings of the 16th International Seminar. - Brno : Institute of Scientific Instruments The Czech Academy of Sciences, 2018 - ISBN 978-80-87441-23-7
    Pagess. 12-13
    Number of pages2 s.
    Publication formPrint - P
    ActionRecent Trends in Charged Particle Optics and Surface Physics Instrumentation
    Event date04.06.2018 - 08.06.2018
    VEvent locationSkalský dvůr
    CountryCZ - Czech Republic
    Event typeWRD
    Languageeng - English
    CountryCZ - Czech Republic
    Keywordsoptical binding ; self-organization ; optical force ; tractor beam ; holographic video microscopy
    Subject RIVJA - Electronics ; Optoelectronics, Electrical Engineering
    OBOR OECDOptics (including laser optics and quantum optics)
    R&D ProjectsGA14-16195S GA ČR - Czech Science Foundation (CSF)
    TE01020233 GA TA ČR - Technology Agency of the Czech Republic (TA ČR)
    LO1212 GA MŠk - Ministry of Education, Youth and Sports (MEYS)
    ED0017/01/01 GA MŠk - Ministry of Education, Youth and Sports (MEYS)
    Institutional supportUPT-D - RVO:68081731
    UT WOS000450591400002
    AnnotationThe motion of a particle illuminated by a laser beam is usually driven by the photon flow due
    to the radiation pressure and therefore for particle trapping, one has to employ gradient forces. But in a tractor beam, objects are illuminated by the uniform light intensity and even so they can be pulled against the beam propagation. There have been developed several techniques how to create such a tractor beam. In our case, the tractor beam is created by two identical Gaussian beams that interfere under the defined angle. It creates the
    standing wave, where in the transversal plane the particle is trapped by means of the gradient
    force, but in the total beam propagation direction, the particle manipulation is driven by the non-conservative force. It is remarkable that this force can for the specific combinations of
    parameters pull the micro-particle against the beam propagation. This kind of behavior is
    because of the particle scattering where the majority of the incident photons is scattered in the forward direction and, based on the principle of action and reaction, the transfer of
    momentum leads to a backward movement of the object. The pushing and pulling force is
    sensitive to the polarization of the laser beam, its incident angle and the particle size so this
    technique can be used for example for sorting of objects of different sizes.
    WorkplaceInstitute of Scientific Instruments
    ContactMartina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178
    Year of Publishing2019
Number of the records: 1