22 October 2010 Radiation forces analysis for gold nanoparticles in optical tweezers
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Abstract
Gold nanoparticles have found broad applications in nanomaterials and nanobiotechnology, but generally they are considered difficult to trap stably. In this paper, numerical studies are carried out to show that the main forces on the gold particles in optical tweezers. The results show that a stable trap for gold nanoparticles can be formed only when the parameters of laser wavelength, laser power, particle size and numerical aperture are properly selected. Keywords: gold nanoparticles, optical tweezers, gradient force, scattering/absorption force
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Xiaoyu Liu, Xiaoyu Liu, Feng Wang, Feng Wang, } "Radiation forces analysis for gold nanoparticles in optical tweezers", Proc. SPIE 7657, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems, 76570Y (22 October 2010); doi: 10.1117/12.865208; https://doi.org/10.1117/12.865208
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