Plasmons: A Minireview

Plasmons, quantum of plasma oscillations, are excited electrons in metals when subjected to sunlight or Vis-IR laser, which gives a wave-like collective oscillation of the surface density charges. Metal-insulator-metal -MIM devices can convert the infrared and visible light into electric current via surface plasmons. Some existent devices for such conversion are nominated and the principal problem to be solved is presented. Plexcitons and silver nanoparticles combined with graphene amazing properties are some of future ways to enhance the plasmonic possibilities.