Polygonal micro-whirlpools induced in ferrofluids

• Autorzy: Bacia M , Lamperska W , Masajada J , Drobczynski S , Marc M

Identyfikatory

DOI

10.5277/oa150304

• Języki publikacji: EN

Abstrakty

EN

We report on the observation of the polygonal whirlpools in the thin layer of ferrofluid under illumination with a laser beam carrying optical vortex and in the presence of a vertical magnetic field. This kind of structures have attracted attention after discovering a hexagonal storm in Saturn’s atmosphere. Our polygonal whirlpools were created in a closed system (no free surfaces) in micro-scale (whirlpool diameter <20 μm) by the use of holographic optical tweezers. The polygonal shape was changed by varying the magnetic field strength or value of the optical vortex topological charge.

Słowa kluczowe

EN

ferrofluid; hexagonal whirlpool; optical vortex; optical tweezers

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2015
• Tom: Vol. 45, nr 3
• Strony: 309--316
• Opis fizyczny: Bibliogr. 25 poz., rys.

Twórcy

autor

Bacia M

• Wrocław University of Technology, Department of Optics and Photonics, Wybrzeże Stanisława Wyspiańskiego 27, 50-370 Wrocław, Poland

autor

Lamperska W

• Wrocław University of Technology, Department of Optics and Photonics, Wybrzeże Stanisława Wyspiańskiego 27, 50-370 Wrocław, Poland

autor

Masajada J

• Wrocław University of Technology, Department of Optics and Photonics, Wybrzeże Stanisława Wyspiańskiego 27, 50-370 Wrocław, Poland

autor

Drobczynski S

• Wrocław University of Technology, Department of Optics and Photonics, Wybrzeże Stanisława Wyspiańskiego 27, 50-370 Wrocław, Poland

autor

Marc M

• Institute of Physics, University of Zielona Góra, Szafrana 4a, 65-069 Zielona Góra, Poland

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