Abstract

We report a series of experiments in which Mie-scattering particles were optically driven in the evanescent field that is generated in a channeled waveguide. Polystyrene latex spheres with diameters of 1–5 μm were laterally trapped within the evanescent field, which was produced by a cw laser beam incident upon the waveguide and then longitudinally driven along the direction of the waveguide channel at speeds of as much as 14 μm/s. Metallic spheres of gold (0.5-μm diameter) and platinum (1-μm diameter) were also laterally trapped and longitudinally moved along the waveguide channel.

© 1996 Optical Society of America

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