Rotation of microscopic discs by the angular momentum of light

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F12%3A00386534" target="_blank" >RIV/68081731:_____/12:00386534 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1117/12.930029" target="_blank" >http://dx.doi.org/10.1117/12.930029</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.930029" target="_blank" >10.1117/12.930029</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Rotation of microscopic discs by the angular momentum of light

Popis výsledku v původním jazyce

While the behavior of spherical particles confined in light beams is well-studied, the dynamics of confined non-spherical particles may be qualitatively different, but remain largely unexplored. We studied the rotation of microscopic dielectric discs induced by the incident angular momentum of an elliptically polarized Laguerre-Gaussian beam. These flat particles are confined in three dimensions by the beam and are oriented naturally with its long axis along the direction of the propagation of the beam.Due to the rotationally asymmetric shape of the particles, we were able to induce a constant rotation of the particles and control it by changing the vorticity and ellipticity of the beam. We also showed a strong dependence on the induced rotation respect to size of the particles. These results provide a new approach to generate or study flows in the microscopic realm as an alternative to the former techniques based on birefringent, absorbent or chiral particles.

Název v anglickém jazyce

Rotation of microscopic discs by the angular momentum of light

Popis výsledku anglicky

While the behavior of spherical particles confined in light beams is well-studied, the dynamics of confined non-spherical particles may be qualitatively different, but remain largely unexplored. We studied the rotation of microscopic dielectric discs induced by the incident angular momentum of an elliptically polarized Laguerre-Gaussian beam. These flat particles are confined in three dimensions by the beam and are oriented naturally with its long axis along the direction of the propagation of the beam.Due to the rotationally asymmetric shape of the particles, we were able to induce a constant rotation of the particles and control it by changing the vorticity and ellipticity of the beam. We also showed a strong dependence on the induced rotation respect to size of the particles. These results provide a new approach to generate or study flows in the microscopic realm as an alternative to the former techniques based on birefringent, absorbent or chiral particles.

Druh

D - Stať ve sborníku

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

Optical Trapping and Optical Micromanipulation IX (Proceeding of SPIE Vol. 8458)

ISBN

978-0-8194-9175-6

ISSN

—

e-ISSN

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Počet stran výsledku

9

Strana od-do

"84582U:1"-"9"

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

San Diego

Datum konání akce

12. 8. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000313034500055