MAGNETIC PLASMONIC NANOPARTICLE DIMER

摘要

Described embodiments include a system, method, and apparatus. The apparatus includes a plasmonic nanoparticle dimer. The dimer includes a first plasmonic nanoparticle having a first magnetic element covered by a first negative-permittivity layer comprising a first plasmonic outer surface. The dimer includes a second plasmonic nanoparticle having a second magnetic element covered by a second negative-permittivity layer comprising a second plasmonic outer surface. The dimer includes a separation control structure configured to establish a dielectric-filled gap between the first plasmonic outer surface and the second plasmonic outer surface. A magnetic attraction between the first magnetic element and the second magnetic element binds the first plasmonic nanoparticle and the second plasmonic nanoparticle together, separated by the dielectric-filled gap established by the separation control structure. The first plasmonic outer surface, the dielectric-filled gap, and the second plasmonic outer surface are configured to cooperatively support one or more mutually coupled plasmonic excitations.

主权项

1. An apparatus comprising:
a plasmonic nanoparticle dimer including; a first plasmonic nanoparticle having a first magnetic element at least partially covered by a first negative-permittivity layer comprising a first plasmonic outer surface; and a second plasmonic nanoparticle having a second magnetic element at least partially covered by a second negative-permittivity layer comprising a second plasmonic outer surface; and a separation control structure disposed between the first plasmonic outer surface and the second plasmonic outer surface and configured to maintain a dielectric-filled gap between the first plasmonic outer surface and the second plasmonic outer surface, wherein a magnetic attraction between the first magnetic element and the second magnetic element binds the first plasmonic nanoparticle and the second plasmonic nanoparticle together, separated by the dielectric-filled gap maintained by the separation control structure, and wherein the first plasmonic outer surface, the dielectric-filled gap, and the second plasmonic outer surface are configured to cooperatively support bonding surface plasmons.