抄録
We propose an optical control method of positions and orientations of nano/micro objects. They can be utilized to align functional components for novel minute devices in engineering experiments. For this aim, an optical handling method based on an electric field gradient force arisen between metallic antenna arrays by the localized surface plasmon polariton (LSPP) is investigated. The optimum antenna structures were numerically designed to control the positions and the orientations of objects around the local gap of the structures. A part of the concept was verified with actually fabricated silver antenna structures and 2D objects positioning experiments for sub-μm objects under loosely focused trapping beam.
