Breakthrough in nano-optics: Researchers develop plasmonic amplifier

Researchers have demonstrated net optical amplification in a plasmonic waveguide. The results represent an important breakthrough in the field of plasmonics. Optical amplification is the only feasible strategy to make light travel over sizable distances when it is bound in a plasmonic mode. Achieving such a macroscopic propagation of surface plasma waves is critical for many applications of the emerging plasmonics technology, which range from compact communication devices and optical computing to the detection and characterization of cells, virus particles or even single molecules.

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