Coherent superposition of exciton states in quantum dots induced by surface plasmons

Gómez, D. E.; Vernon, K. C.; Mulvaney, P.; Davis, T. J.
February 2010
Applied Physics Letters;2/15/2010, Vol. 96 Issue 7, p073108
Academic Journal
We present an experimental demonstration of strong optical coupling between CdSe quantum dots of different sizes which is induced by a surface plasmon propagating on a planar silver thin film. Attenuated total reflection measurements demonstrate the hybridization of exciton states, characterized by the observation of two avoided crossings in the energy dispersion measured for the interacting system.


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