Abstract
We study optical routing and switching of energy transfer between semiconductor quantum dots and metallic nanostructures. We demonstrate that in the presence of a metallic nanoshell, one can use quantum coherence to direct or switch energy transfer flow from a quantum dot to another quantum dot or to the nanoshell. Our results show that a quantum dot-metallic nanoshell system can act as a bistable energy switch formed via quantum mechanical control of energy transfer processes.
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