Optically switched energy transfer: Twin-beam off-resonance control

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Abstract

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
Article number023601
JournalPhysical Review Letters
Volume99
Issue number2
DOIs
Publication statusPublished - 11 Jul 2007

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