Rotation, oscillation and hydrodynamic synchronization of optically trapped oblate spheroidal microparticles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F14%3A00431695" target="_blank" >RIV/68081731:_____/14:00431695 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1364/OE.22.016207" target="_blank" >http://dx.doi.org/10.1364/OE.22.016207</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/OE.22.016207" target="_blank" >10.1364/OE.22.016207</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Rotation, oscillation and hydrodynamic synchronization of optically trapped oblate spheroidal microparticles

Popis výsledku v původním jazyce

While the behavior of optically trapped dielectric spherical particles has been extensively studied, the behavior of non-spherical particles remains mainly unexplored. In this work we focus on the dynamics of oblate spheroidal particles trapped in a tightly focused elliptically-polarized vortex beam. In our experiments we used polystyrene spheroids of aspect ratio of major to minor axes equal to 2.55 and of a volume equal to a sphere of diameter 1.7 mu m. We demonstrate that such particles can be trapped in three dimensions, with the minor axis oriented perpendicular to both the beam polarization (linear) and the beam propagation, can spin in a circularly polarized beam and an optical vortex beam around the axis parallel with the beam propagation. We also observed that these particles can exhibit a periodic motion in the plane transversal to the beam propagation. We measured that the transfer of the orbital angular momentum from the vortex beam to the spheroid gives rise to torques one

Název v anglickém jazyce

Rotation, oscillation and hydrodynamic synchronization of optically trapped oblate spheroidal microparticles

Popis výsledku anglicky

While the behavior of optically trapped dielectric spherical particles has been extensively studied, the behavior of non-spherical particles remains mainly unexplored. In this work we focus on the dynamics of oblate spheroidal particles trapped in a tightly focused elliptically-polarized vortex beam. In our experiments we used polystyrene spheroids of aspect ratio of major to minor axes equal to 2.55 and of a volume equal to a sphere of diameter 1.7 mu m. We demonstrate that such particles can be trapped in three dimensions, with the minor axis oriented perpendicular to both the beam polarization (linear) and the beam propagation, can spin in a circularly polarized beam and an optical vortex beam around the axis parallel with the beam propagation. We also observed that these particles can exhibit a periodic motion in the plane transversal to the beam propagation. We measured that the transfer of the orbital angular momentum from the vortex beam to the spheroid gives rise to torques one

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

<a href="/cs/project/LH12018" target="_blank" >LH12018: Koloidní optické vlnovody</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Optics Express

ISSN

1094-4087

e-ISSN

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Svazek periodika

22

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

16207-1621

Kód UT WoS článku

000338055900099

EID výsledku v databázi Scopus

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