Towards total photonic control of complex-shaped colloids by vortex beams
作者： Clayton P. Lapointe , Thomas G. Mason , Ivan I. Smalyukh
DOI: 10.1364/OE.19.018182
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摘要: We demonstrate optical trapping and orientational control over colloidal particles having complex shapes in an anisotropic host fluid using a dynamic holographic tweezers system. Interactions between particle the toroidal intensity distributions of focused Laguerre-Gaussian beams allow for stable tweezing provide tunable tilt out focal plane. Use aligned nematic liquid crystal as suppresses rotations about axis arising from angular momentum transfer beam effectively defines rotational colloid within trap.
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