Surface plasmon optical tweezers: tunable optical manipulation in the femtonewton range.

@article{Righini2008SurfacePO,
  title={Surface plasmon optical tweezers: tunable optical manipulation in the femtonewton range.},
  author={M. Righini and G. Volpe and C. Girard and D. Petrov and R. Quidant},
  journal={Physical review letters},
  year={2008},
  volume={100 18},
  pages={
          186804
        }
}
We present a quantitative analysis of 2D surface plasmon based optical tweezers able to trap microcolloids at a patterned metal surface under low laser intensity. Photonic force microscopy is used to assess the properties of surface plasmon traps, such as confinement and stiffness, revealing stable trapping with forces in the range of a few tens of femtonewtons. We also investigate the specificities of surface plasmon tweezers with respect to conventional 3D tweezers responsible for their… Expand
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