What are plasmons in chemistry?

Plasmons are collective oscillations of the electrons which are present at the bulk and surface of conducting materials and in the neighborhood of conducting particles.

What are plasmonic nanoparticles used for?

Plasmonic nanoparticles are extremely strong absorbers and scatters of light and are used in lateral flow diagnostics, surface enhanced spectroscopy, labeling, and color changing sensors.

Are plasmons bosons?

Plasmons, as well as surface plasmons, are collective excitations of fermions, which are not, strictly speaking, bosons, although their commutation relations can be approximated by bosonic commutation relations with an error that decays as the inverse of the number of electrons (7).

What is the plasmonic effect?

The plasmonic effect is the interaction between free electrons in metal nano particles and incident light.

Can a surface plasmon be localized to a nanoparticle?

Localize surface plasmons arise in small metallic objects, including nanoparticles. Since the translational invariance of the system is lost, a description in terms of wavevector, as in SPPs, can not be made. Also unlike the continuous dispersion relation in SPPs, electromagnetic modes of the particle are discretized.

How are nano particles used in plasmonic solar cells?

Many of the plasmonic solar cells use nano-particles to enhance the scattering of light. These nano-particles take the shape of spheres, and therefore the surface plasmon resonance frequency for spheres is desirable.

Is the plasmon a quasiparticle of the plasma oscillation?

Just as light (an optical oscillation) consists of photons, the plasma oscillation consists of plasmons. The plasmon can be considered as a quasiparticle since it arises from the quantization of plasma oscillations, just like phonons are quantizations of mechanical vibrations.

What kind of polaritons are used in plasmonics?

Plasmonics typically utilizes so-called surface plasmon polaritons (SPPs), that are coherent electron oscillations travelling together with an electromagnetic wave along the interface between a dielectric (e.g. glass, air) and a metal (e.g. silver, gold).