Plasmonics
use of plasmons for data transmission in circuits
Plasmonics or nanoplasmonics refers to the generation, detection, and manipulation of signals at optical frequencies along metal-dielectric interfaces in the nanometer scale. Inspired by photonics, plasmonics follows the trend of miniaturizing optical devices (see also nanophotonics), and finds applications in optical sensing, microscopy, optical communications, and biophotonics.
Magnetoplasmonics is an interdisciplinary field that studies the interactions between magnetism and plasmonics; magnetoplasmonics in confined geometries has the aim to control plasmons through magnetic properties and magnetic phenomena through plasmons.
Principles
Plasmonics typically utilizes 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). The SPP modes are strongly confined to their supporting interface, giving rise to strong light–matter interactions. In particular, the electron gas in the metal oscillates with the electro-magnetic wave. Because the moving electrons are scattered, ohmic losses in plasmonic signals are generally large, which limits the signal transfer distances to the sub-centimeter range, unless hybrid optoplasmonic light guiding networks, or plasmon gain amplification are used. Besides SPPs, localized surface plasmon modes supported by metal nanoparticles are referred to as plasmonics modes.
“Plasmonics” enters the record as use of plasmons for data transmission in circuits. Crown Archives preserves that source wording while asking what Plasmonics, plasmons and data can confirm, complicate or overturn.
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This entry incorporates text from “Plasmonics” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.