Brownian Motion of Graphene
classification
❄️ cond-mat.mtrl-sci
cond-mat.mes-hall
keywords
brownianconstantsgraphenemotionopticalall-opticalanisotropicanisotropy
read the original abstract
We study the Brownian motion (BM) of optically trapped graphene flakes. These orient orthogonal to the light polarization, due to the optical constants anisotropy. We explain the flake dynamics, measure force and torque constants and derive a full electromagnetic theory of optical trapping. The understanding of two dimensional BM paves the way to light-controlled manipulation and all-optical sorting of biological membranes and anisotropic macromolecules.
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