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26 August 2005 Optical binding of micron-size spheres
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Abstract
We focus on a numerical study using coupled dipoles to explore the interaction between two spheres of micron size. This interaction (sometimes called optical coupling or binding) is studied in counter-propagating Gaussian laser beams that do not interfere. We found that for a certain range of the refractive indices of the particle there exist several stable and unstable positions where the total forces acting on particles are zero. Moreover we observed an oscillations of the force acting between both objects coming from the interference of backscattered field.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Vitezslav Karasek and Pavel Zemanek "Optical binding of micron-size spheres", Proc. SPIE 5930, Optical Trapping and Optical Micromanipulation II, 593029 (26 August 2005); https://doi.org/10.1117/12.615739
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