Sorting nanoparticles with intertwined plasmonic and thermo-hydrodynamical forces.
We exploit plasmonic and thermo-hydrodynamical forces to sort gold nanoparticles in a microfluidic environment. In the appropriate regime, the experimental data extracted from a Brownian statistical analysis of the kinetic motions are in good agreement with Mie-type theoretical evaluations of the optical forces acting on the nanoparticles in the plasmonic near field. This analysis enables us to demonstrate the importance of thermal and hydrodynamical effects in a sorting perspective.
ISIS & icFRC, University of Strasbourg and CNRS (UMR 7006) , 8 allée Gaspard Monge, 67000 Strasbourg, France.
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Cuche
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Canaguier-Durand
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Devaux
J A
JA
Hutchison
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Genet
T W
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Ebbesen