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Pugliesi, Igor; Langhals, Heinz ORCID: 0000-0002-8038-4547; Kauffmann, Harald F.; Riedle, Eberhard ORCID: 0000-0002-2672-5718 (2013): New perspectives on ultrafast Förster Resonant Energy Transfer. XVIIIth International Conference on Ultrafast Phenomena, 8 - 13 July 2012, Lausanne, Switzerland.
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We show that perylene diimide dyads based on a donor-spacer-acceptor motif violate Förster's dipole-dipole interaction picture for energy transfer in the low picosecond to sub-100 femtosecond regime. First theoretical explanations are presented.