are resonant oscillations of a collection of electrons and typically occur in a metallic solid.
The problem when you switch from light waves to surface plasmons
, though, is that plasmons
very quickly lose their power - they move real fast, but tend to peter out long before they reach their destination.
This gap produces "hot spots", where surface plasmons
interact mutually, and thus, provide the hottest point of the plasmon
are coherent oscillations of electrons, unattached to any atom, at the interface of two materials, usually metal and air.
Recently, surface plasmons
have been engineered into a variety of light-activated devices such as biosensors.
In one design, it was shown that a chemical binding event that changes the dielectric constant of the metal surface causes a shift of the surface plasmon
resonances (Langmuir, 20 (2004) 4813).
This is particularly compelling because surface plasmons
resolve a basic mismatch between wavelength-scale optical devices and the much smaller components of integrated electronic circuits.
We will create a unique quantum state: a Bose-Einstein condensate of surface plasmons
for which quantum properties become apparent in a many-emitter system.
The second section focuses on the physics and applications of vortex-trapping and vortex-generating plasmonic components, including the local field topology behind localization and metamaterial topological transitions, nano-Fano resonances and topological optics, chiral nanostructures fabricated by twisted light with spin, engineering the orbital angular momentum of light with plasmonic Vogel spiral arrays, probing magnetic plasmons
with vortex electron beams, electromagnetic optical vortices with plasmonic Taiji marks, passive and active nano-antenna systems, and the design fabrication and characterization of plasmonic nanostructures for nanoscale energy delivery and biosensing.
The presence of a regular array of holes disturbs the motion of these plasmons
, causing them to interact strongly with the electromagnetic fields of photons striking the metal surface.
Readership: Advanced graduate and postgraduate students, researchers and engineers interested in the physics of surface plasmons
and their use for nanoscale photonics.
Nowadays, by cleverly harnessing the interaction of the studied molecules with plasmons
(collective electron excitations supported, e.