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Using counterpropagating surface plasmon polaritons (SPPs) excited by prism coupling on a gold stripe, we demonstrate a scannable integrated optical tweezer. Additionally, we demonstrate optical trapping with silicon microring resonators.
The dispersion relations of plasmon modes of gold nanoparticle chains are measured, and compared with quasistatic theory. In addition to one longitudinal and one transverse mode, the results reveal a third mode, not previously observed.
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