# Optical trapping by Laguerre-Gaussian beams: Symmetries, stability and equilibria

@article{Kiselev2016OpticalTB, title={Optical trapping by Laguerre-Gaussian beams: Symmetries, stability and equilibria}, author={Alexei D. Kiselev and Dmytro O. Plutenko}, journal={arXiv: Optics}, year={2016} }

We use the T-matrix formalism in combination with the method of far-field matching to evaluate the optical force exerted by Laguerre-Gaussian (LG) light beams on a spherical (Mie) particle. For both non-vortex and optical vortex LG beams, the theoretical results are used to analyze the optical-force-induced dynamics of the scatterer near the trapping points represented by the equilibrium (zero-force) positions. The regimes of linearized dynamics are described in terms of the stiffness matrix…

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