Author:
Park Junbum,Hong Seongjin,Lee Yong Soo,Lee Hyeonwoo,Kim Seokjin,Dholakia Kishan,Oh Kyunghwan
Abstract
AbstractWe report a new method to optically manipulate a single dielectric particle along closed-loop polygonal trajectories by crossing a suite of all-fiber Bessel-like beams within a single water droplet. Exploiting optical radiation pressure, this method demonstrates the circulation of a single polystyrene bead in both a triangular and a rectangle geometry enabling the trapped particle to undergo multiple circulations successfully. The crossing of the Bessel-like beams creates polygonal corners where the trapped particles successfully make abrupt turns with acute angles, which is a novel capability in microfluidics. This offers an optofluidic paradigm for particle transport overcoming turbulences in conventional microfluidic chips.
Funder
the National Research Foundation of Korea
the UK Engineering and Physical Sciences Research Council
Publisher
Springer Science and Business Media LLC
Cited by
7 articles.
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