Optically Switched Energy Transfer: Twin-Beam Off-Resonance Control

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It is shown that, in the optical near field, the interaction of two polarized laser beams with different frequencies can promote a transfer of energy between suitably placed donor and acceptor particles, through a process that is rigorously forbidden in the absence of the laser light. The mechanism, which operates through stimulated Raman scattering by the donor-acceptor pair, is identified and characterized by quantum electrodynamical calculation. The results suggest efficiency levels comparable to conventional resonance energy transfer. Optical switching applications are envisaged.
Original languageEnglish
Pages (from-to)023601
Number of pages1
JournalPhysical Review Letters
Issue number2
Publication statusPublished - 11 Jul 2007

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