Optical manipulation of a dielectric particle along polygonal closed-loop geometries within a single water droplet
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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.
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2017 ◽
Vol 195
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pp. 55-65
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1996 ◽
Vol 24
(11)
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pp. 1186-1192
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2019 ◽
Vol 39
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pp. 476-489
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1997 ◽
Vol 102
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pp. 3185-3185
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pp. 777-780
1997 ◽
Vol 100
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pp. 600-601