Optical manipulation of a dielectric particle along polygonal closed-loop geometries within a single water droplet
Abstract
We 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.
Citation
Park , J , Hong , S , Lee , Y S , Lee , H , Kim , S , Dholakia , K & Oh , K 2021 , ' Optical manipulation of a dielectric particle along polygonal closed-loop geometries within a single water droplet ' , Scientific Reports , vol. 11 , 12690 . https://doi.org/10.1038/s41598-021-92209-9
Publication
Scientific Reports
Status
Peer reviewed
ISSN
2045-2322Type
Journal article
Description
This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Korea government (MSIT) (No. 2019R1A2C2011293) and the UK Engineering and Physical Sciences Research Council (Grant EP/P030017/1).Collections
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