20 August 2009 Optical paddle-wheel
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Abstract
As an optically trapped micro-object spins in a fluid, there is a consequent flow in the fluid.. Since a free-floating optically-driven microrotor can be moved to a desired position, it can allow the controlled application of a directed flow in a particular location. Here we demonstrate the control and rotation of such a device, an optical paddle-wheel, using a multiple-beam trap. In contrast to the usual situation where rotation is around the beam axis, here we demonstrate rotation normal to this axis.
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Theodor Asavei, Vincent L. Y. Loke, Timo A. Nieminen, Norman R. Heckenberg, Halina Rubinsztein-Dunlop, "Optical paddle-wheel", Proc. SPIE 7400, Optical Trapping and Optical Micromanipulation VI, 740020 (20 August 2009); doi: 10.1117/12.828426; https://doi.org/10.1117/12.828426
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