Clear Search sequence regions

Sizes of these terms reflect their relevance to your search.

We show that Förster resonance energy transfer (FRET) in an orthogonally arranged donor-acceptor pair can be induced by environmental noise, although direct transfer is prohibited. Environmental fluctuations break the strict orthogonal dipole arrangement and cause effective fluctuating excitonic interactions. Using a scaling argument, we show that interaction fluctuations are coupled to those of the energy levels and are strong enough to induce large FRET rates. This mechanism also explains the temperature dependence observed in a recent experiment on a perylene bisimide dyad and predicts a modified distance dependence as compared to standard Förster theory.


P Nalbach, I Pugliesi, H Langhals, M Thorwart. Noise-induced Förster resonant energy transfer between orthogonal dipoles in photoexcited molecules. Physical review letters. 2012 May 25;108(21):218302

Expand section icon Mesh Tags

Expand section icon Substances

PMID: 23003309

View Full Text