Sorting Nanoparticles with Intertwined Plasmonic and Thermo-Hydrodynamical Forces

作者：Cuche A; Canaguier Durand A; Devaux E; Hutchison J A; Genet C^*; Ebbesen T W

来源：Nano Letters, 2013, 13(9): 4230-4235.

DOI：10.1021/nl401922p

• Optical sorting
• metallic nanoparticles
• Mie theory
• thermo-hydrodynamical forces
• plasmofluidics
• Brownian motion

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.

• 出版日期2013-9