Polygonal micro-whirlpools induced in ferrofluids

被引：6

作者：

Bacia, Marcin ^{[1
]}

Lamperska, Weronika ^{[1
]}

Masajada, Jan ^{[1
]}

Drobczynski, Slawomir ^{[1
]}

Marc, Maciej ^{[2
]}

机构：

[1] Wroclaw Univ Technol, Dept Opt & Photon, Wybrzeze Stanislawa Wyspianskiego 27, PL-50370 Wroclaw, Poland

[2] Univ Zielona Gora, Inst Phys, PL-65069 Zielona Gora, Poland

来源：

OPTICA APPLICATA | 2015年 / 45卷 / 03期

关键词：

ferrofluid; hexagonal whirlpool; optical vortex; optical tweezers; INDUCED CLUSTER FORMATION; PARTICLES; SIZE;

D O I：

10.5277/oa150304

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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 mu m) 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.

引用

页码：309 / 316

页数：8

共 25 条

[1] A laboratory model of Saturn's North Polar Hexagon [J].

Aguiar, Ana C. Barbosa ;

Read, Peter L. ;

Wordsworth, Robin D. ;

Salter, Tara ;

Yamazaki, Y. Hiro .

ICARUS, 2010, 206 (02) :755-763

[2] A WAVE DYNAMIC INTERPRETATION OF SATURNS POLAR HEXAGON [J].

ALLISON, M ;

GODFREY, DA ;

BEEBE, RF .

SCIENCE, 1990, 247 (4946) :1061-1063

[3] Saturn's north polar cyclone and hexagon at depth revealed by Cassini/VIMS [J].

Baines, Kevin H. ;

Momary, Thomas W. ;

Fletcher, Leigh N. ;

Showman, Adam P. ;

Roos-Serote, Maarten ;

Brown, Robert H. ;

Buratti, Bonnie J. ;

Clark, Roger N. ;

Nicholson, Philip D. .

PLANETARY AND SPACE SCIENCE, 2009, 57 (14-15) :1671-1681

[4] Whirl-enhanced continuous wave laser trapping of particles [J].

Bartkiewicz, S. ;

Miniewicz, A. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2015, 17 (02) :1077-1083

[5] The effect of suspended Fe3O4 nanoparticle size on magneto-optical properties of ferrofluids [J].

Brojabasi, Surajit ;

Muthukumaran, T. ;

Laskar, J. M. ;

Philip, John .

OPTICS COMMUNICATIONS, 2015, 336 :278-285

[6] Dynamic holographic optical tweezers [J].

Curtis, JE ;

Koss, BA ;

Grier, DG .

OPTICS COMMUNICATIONS, 2002, 207 (1-6) :169-175

[7] Singular Optics: Optical Vortices and Polarization Singularities [J].

Dennis, Mark R. ;

O'Holleran, Kevin ;

Padgett, Miles J. .

PROGRESS IN OPTICS, VOL 53, 2009, 53 :293-363

[8] Stretching single DNA molecules to demonstrate high-force capabilities of holographic optical tweezers [J].

Farre, Arnau ;

van der Horst, Astrid ;

Blab, Gerhard A. ;

Downing, Benjamin P. B. ;

Forde, Nancy R. .

JOURNAL OF BIOPHOTONICS, 2010, 3 (04) :224-233

[9] Optical trapping of metallic particles by a fixed Gaussian beam [J].

Furukawa, H ;

Yamaguchi, I .

OPTICS LETTERS, 1998, 23 (03) :216-218

[10] Optical vortex trapping of particles [J].

Gahagan, KT ;

Swartzlander, GA .

OPTICS LETTERS, 1996, 21 (11) :827-829

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