Ultranarrow coupling-induced transparency bands in hybrid plasmonic systems

Plasmons in nanoscale structures represent an exciting new route toward efficient manipulation of photons, especially at subwavelength scales. Of particular interest are the hybridized plasmonic systems, in which the interaction among the plasmonic elements can be utilized to tailor the optical responses. Here we demonstrate a hybridized plasmonic-waveguide system exhibiting behavior similar to that of the electromagnetically induced transparency; namely, an ultranarrow transmission line width arising from a coupling-induced cancellation of the plasmonic resonance.

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