PLASMON Meaning and
Definition
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Plasmon is a noun referring to a quantum of plasma oscillation. It is a collective motion of the electrons in a solid or a liquid that arises from their interaction with electromagnetic waves. Plasmons are considered quasi-particles because they exhibit particle-like behavior despite being collective excitations of many electrons.
In solid-state physics, plasmons typically occur at the interface between a metal and a dielectric or within a metallic structure. These excitations result from the coupling between the electromagnetic field and the free electrons in the metal, leading to the formation of electron density waves. Plasmons play a crucial role in a variety of phenomena, including energy transfer, light-matter interaction, and surface-enhanced spectroscopy.
In the field of nanophotonics, plasmons have gained significant attention due to their ability to confine and manipulate light at the nanoscale. This field explores the use of plasmonic structures, such as metallic nanoparticles or nanostructures, to control the flow of light beyond the diffraction limit. Plasmonic devices have promising applications in areas such as sensing, imaging, and telecommunications.
Understanding plasmons enables scientists and engineers to design and develop innovative nanoscale devices that can manipulate and control light in unprecedented ways. Ongoing research in plasmonics focuses on improving plasmon excitation efficiency, reducing losses, and further exploring new properties and functionalities of these exciting quasi-particles.
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Trade name of a solid food preparation made from milk.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for PLASMON
Etymology of PLASMON
The word "plasmon" originates from the combination of two Greek words: "plasma", which means "something molded" or "shape" in Greek, and "on" or "-on" as a common ending used for elementary particles or units of energy. In the context of physics, "plasmon" refers to a quantum of plasma oscillation or a collective excitation of electrons in a solid or liquid. The term was coined in the early 20th century, and its etymology reflects its connection to the concept of plasma and the nature of its behavior.
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