Method and structure for plasmonic optical trapping of nano-scale particles

摘要

Methods and article for optically trapping nano-sized objects by illuminating a coaxial plasmonic aperture are disclosed.

主权项

1. An article comprising:
a coaxial plasmonic aperture, wherein the coaxial plasmonic aperture includes:
a core, wherein the core comprises a metal;a channel, wherein the channel surrounds the core, and wherein the channel comprises a dielectric and has a width in a range of about 5 nanometers to about 500 nanometers; anda cladding, wherein the cladding surrounds the channel and comprises metal; and a laser, wherein the laser is positioned to illuminate a first end of the coaxial plasmonic aperture, the first end being an input end.