Počet záznamů: 1  

Optical binding of polystyrene particles in tractor beam

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    SYSNO ASEP0494359
    Druh ASEPC - Konferenční příspěvek (mezinárodní konf.)
    Zařazení RIVD - Článek ve sborníku
    NázevOptical binding of polystyrene particles in tractor beam
    Tvůrce(i) 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
    Celkový počet autorů6
    Zdroj.dok.Recent 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
    Rozsah strans. 12-13
    Poč.str.2 s.
    Forma vydáníTištěná - P
    AkceRecent Trends in Charged Particle Optics and Surface Physics Instrumentation
    Datum konání04.06.2018 - 08.06.2018
    Místo konáníSkalský dvůr
    ZeměCZ - Česká republika
    Typ akceWRD
    Jazyk dok.eng - angličtina
    Země vyd.CZ - Česká republika
    Klíč. slovaoptical binding ; self-organization ; optical force ; tractor beam ; holographic video microscopy
    Vědní obor RIVJA - Elektronika a optoelektronika, elektrotechnika
    Obor OECDOptics (including laser optics and quantum optics)
    CEPGA14-16195S GA ČR - Grantová agentura ČR
    TE01020233 GA TA ČR - Technologická agentura České republiky
    LO1212 GA MŠk - Ministerstvo školství, mládeže a tělovýchovy
    ED0017/01/01 GA MŠk - Ministerstvo školství, mládeže a tělovýchovy
    Institucionální podporaUPT-D - RVO:68081731
    UT WOS000450591400002
    AnotaceThe 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.
    PracovištěÚstav přístrojové techniky
    KontaktMartina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178
    Rok sběru2019
Počet záznamů: 1