Rhythmic motion of colloidal particles driven by optical force

机译：胶体粒子受光动力的节律运动

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We observed the collective motion of colloidal particles moving along a circular path in water as a model system of artificial active matter. The particles were driven by optical vortex using holographic optical tweezer. They exhibit rhythmic motion with spontaneous formation of clusters and their dissociation by hydrodynamic interaction. The hydrodynamic interaction in spatially confined system alter their rhythmic motion dramatically. For example, we found that the relative magnitude of the angular velocity for a doublet to a singlet reversed in free space and in strongly confined system. The transition of rhythmic motions was observed by varying spatial confinement.

机译：我们观察到了作为人工活性物质模型系统的胶体颗粒在水中沿圆形路径运动的集体运动。使用全息光学镊子通过光学涡旋驱动颗粒。它们表现出具有节律性的运动，并自发形成簇，并通过流体动力相互作用使其解离。空间受限系统中的流体动力相互作用极大地改变了它们的节律运动。例如，我们发现，在自由空间和强约束系统中，双峰到单峰的角速度的相对大小相反。通过改变空间限制来观察节奏运动的过渡。

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来源
《Optical manipulation conference》|2017年|1025203.1-1025203.3|共3页
会议地点 Yokohama(JP)
作者
Keita Saito; Yasuyuki Kimura;
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作者单位

Department of Physics, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan;

Department of Physics, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan;

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正文语种 eng
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collective motion; colloidal particles; hydrodynamic interaction; optical vortex;

机译：集体运动；胶体颗粒；流体动力相互作用光学涡旋;

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专利

1. Hydrodynamically Induced Collective Motion of Optically Driven Colloidal Particles on a Circular Path [J] . Kimura Yasuyuki Journal of the Physical Society of Japan . 2017,第10期

机译：光学驱动胶体颗粒对圆形路径的流体动力学诱导的集体运动
2. Optical trapping of colloidal particles and measurement of the defect line tension and colloidal forces in a thermotropic nematic liquid crystal [J] . I. I. Smalyukh, A. N. Kuzmin, A. V. Kachynski, Applied Physics Letters . 2005,第2期

机译：热致向列型液晶中胶体粒子的光学俘获和缺陷线张力和胶体力的测量
3. Particle motion driven by solute gradients with application to autonomous motion: Continuum and colloidal perspectives [J] . Brady J.F. Journal of Fluid Mechanics . 2011,第Null期

机译：由溶质梯度驱动的粒子运动及其在自主运动中的应用：连续谱和胶体透视
4. Rhythmic motion of colloidal particles driven by optical force [C] . Keita Saito, Yasuyuki Kimura Optical manipulation conference . 2017

机译：由光学力驱动的胶体颗粒的有节奏运动
5. An optical technique for measuring force between a colloidal particle and a flat surface. [D] . Clapp, Aaron Robert. 2001

机译：一种光学技术，用于测量胶体颗粒和平坦表面之间的力。
6. Optically driven translational and rotational motions of microrod particles in a nematic liquid crystal [O] . Alexey Eremin, Pemika Hirankittiwong, Nattaporn Chattham, 2015

机译：向列型液晶中微棒粒子的光驱动平移和旋转运动
7. Measurment of interparticle force between colloidal particles in nematic liquid crystal by optical tweezers(Poster session 1, New Frontiers in Colloidal Physics : A Bridge between Micro- and Macroscopic Concepts in Soft Matter) [O] . Takahashi Kenji, Ichikawa Masatoshi, Kimura Yasuyuki 2007

机译：用光镊测量向列型液晶中胶体粒子之间的粒子间力（海报会议1，胶体物理学的新前沿：软物质中微观和宏观概念之间的桥梁）
8. Interaction and Aggregation of Colloidal Biological Particles and Droplets in Electrically-Driven Flows [R] . Davis, R. H. , Loewenberg, M. 1997

机译：电驱动流中胶体生物颗粒和液滴的相互作用和聚集

Rhythmic motion of colloidal particles driven by optical force

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