The scalability and resolution of conventional optical manipulation techniques are limited by diffraction. We circumvent the diffraction limit and describe a method of optically transporting nanoparticles across a chip using a gold surface patterned with a path of closely spaced C-shaped plasmonic resonators.
Ryan, J., Zheng, Y., Hansen, P., Hesselink, L. Fabrication and Operation of a Nano-Optical Conveyor Belt. J. Vis. Exp. (102), e52842, doi:10.3791/52842 (2015).