Nanometric optical tweezers based on nanostructured substrates

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Strong plasmonic enhancement of photovoltage in graphene. (2011, background): “One might consider this process as generation of evanescent photons that exist only in the near-field regio”
Plasmon nano-optical tweezers (2011, methodology): “recently used gap antennas to assist conventional optical tweezer”
Optical manipulation of nanoparticles and biomolecules in sub-wavelength slot waveguides (2009, result): “Although a direct comparison is difficult, this is significantly higher than previously described for larger particles using other near-field techniques (see Grigorenko et al.4 who reported a 0.013 pN nm–1 stiffness for a 200-nm bead).”
Discontinuous Galerkin methods in nanophotonics (2011, background): “Based on the same principle of local field enhancement, it is also possible to construct plasmonic tweezers [9] which trap and manipulate small particles.”
Self -induced back-action optical trapping of dielectric nanoparticles (2009, methodology): “Nanoscale objects have been confined to subwavelength regions using nanostructured optical trap”
Optical pulling force (2011, background): “0 is the leading term in equation (7), which, being (krs)(6), is positive.”