Electrical nanostructures Plasmon Polariton

1 بهمن 1402 - خواندن 3 دقیقه - 72 بازدید




Note: The so-called term polariton is used for the oscillation of metal-bound electrons in the state of coupling with incident beam phonons.

The name polariton was used for quasi-particles that were half matter and half photon, which is the coupling state between a photon of the elementary excitation beam and the conduction electrons of the metal, and the term plasmon polariton (Plasmon Polariton) was used to express the reason for the coupling. is between a photon and a plasmon.The name polariton was used for quasi-particles that were half matter and half photon, which is the coupled state between a photon The primary excitation beam and conduction electrons are metal, and the term plasmon polariton (Plasmon Polariton) is used to express the coupling between a photon and a plasmon. A surface plasmon polariton is an electromagnetic excitation that exists on the surface of a good metal. It is a two-dimensional intrinsic excitation whose electromagnetic field decays exponentially with distance from the surface. In the past, it would be possible to study only the scattered (far-field) light produced by the interaction of surface polaritons with surface features. Only with the development of the near-field optical microscope, it becomes possible to measure the surface polariton field directly in the vicinity of the existing surface. Surface polariton scattering, interference, backscattering, and localization, as well as optical concepts of surface polariton and polaritonic crystals is one of the most important features of plasmon polariton electrical nanostructures. Surface polaritons are finding an increasing number of applications in the traditional fields of surface characterization and sensors, as well as in the emerging technologies of nanophotonics and optoelectronics.



Generally, the electrical nanostructures of Plasmon Polariton (Plasmon Polariton) from the first order scattering theory including electromagnetic Green's function tensors for the cavity void that connects the positions of the emitter that distorts the density of states and the case that probes it. to apply it to plasmon polariton electric nanostructures, thus we have three different mechanisms behind the asymmetric spectral features. that appear due to emitter waves, we identify: modification of the plasmonic coupling to the probe emitter, the appearance of second-order modell-like contributions and absorption by the distorting emitter, electrical nanostructures We use plasmon polariton  to study two different systems (nanoparticles on mirrors and asymmetric bow-tie-like geometries), whose validity It is tested against numerical simulations.

Conclusion :
The so-called term polariton is used for the oscillation of bound electrons of a metal in the state of coupling with incident beam phonons.