Efficient Optical Trapping of Nanoparticle via Plasmonic Bowtie Notch

Abstract

We propose a metallic nanostructure named plasmonic bowtie notch (PBN) for optical trapping of nanoparticle. As the resonance mode can be highly concentrated at the two top apexes in gap region, PBN exerts strong trapping force on the nanoparticle with ultra-low power consumption. In application, PBN can be utilized for trapped target selecting and sensing.