Abstract
The optical properties of hybrid nanostructures comprised of active materials, e.g., semiconductors or J-aggregated molecules and metals are currently attracting substantial attention since they may form the basis for novel optoelectronic devices e.g. surface plasmon polariton (SPP) amplifiers, ultrafast optical switches or nanolasers [1] as well as are highly interesting from a fundamental point of view. In favorable geometries, their optical properties are governed by a new class of short-lived quasiparticles, exciton – surface plasmon polaritons [2,3], with hitherto essentially unexplored nonequilibrium dynamics. Their binding energies, , given by the spatial overlap integral of the excitonic transition dipole moment and the SPP electric field , can reach large values of several hundred meV. This implies that the optical properties of such strongly coupled hybrid structures can be drastically altered by externally manipulating either or .
© 2011 IEEE
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