Förster-type resonant energy transfer influenced by metal nanoparticles.

Reil, Frank; Hohenester, Ulrich; Krenn, Joachim R; Leitner, Alfred · Nano Lett · 2008

basic_science · Level V

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Abstract

We show experimentally and numerically that Forster-type resonant energy transfer between molecules strongly depends on the interaction with plasmonic resonances in a nearby metallic nanoparticle (MNP). Acceptor luminescence emerges at the expense of donor luminescence when an acceptor molecule harvests the donor's near-field energy. By tuning the resonance of a close-by MNP across the transition energy bands of the molecules, we show how the molecular luminescence is affected and in part even strongly increased.