单词	plasmon
释义	plasmon /ˈplazmɒn / noun Physics A quantum or quasiparticle associated with a local collective oscillation of charge density.It is based upon the coupling of plasmons (charge density oscillations) excited by light in thin metal films, with waveguide modes in a dielectric layer overcoating the metal film.... At each groove, plasmons scatter and radiate some light, while some plasmon energy remains to travel to the next groove. The surface plasmons then decay into photons, which are emitted from the surface. Origin 1950s: from plasma + -on.
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