Optical Trapping of Soft-Matter Nanoparticles Based on Localized Surface Plasmon Under

Abstract

Localized surface plasmon generates a strong radiation force on nanoparticles in the vicinity of noble metallic nanostructures, resulting in efficient and stable optical trapping. Such plasmonic optical trapping is a hot topic in nanophotonics, and can be applied to molecular manipulation techniques. We review plasmonic optical trappings of thermoresponsive polymer microgels and DNA. Discussion on trappings of these soft nanomaterials provides us a crucial important issue for achieving molecular manipulation based on plasmonic optical trapping. Finally, we will describe future outlook for this trapping method.