Abstract
FRET has become a process of ubiquitous importance in chemistry and biochemistry. While proximity measurements of light absorbing and fluorescent structures still rely on the basic theory of FRET, recent results from 2D electronic spectroscopy on light harvesting complexes show, that a more refined model is required for an accurate description of this photophysical process [1]. We investigate the very principles of FRET on a set of perylene bisimide dyads (see Fig. 1) by pump-probe spectroscopy, chemical variation and calculations. These dyads undergo transfer with near unit quantum efficiency although the transition dipole moments of donor and acceptor are in a perfectly orthogonal arrangement to each other in the equilibrium geometry.
© 2011 IEEE
PDF ArticleMore Like This
Igor Pugliesi, Andreas Walter, Heinz Langhals, and Eberhard Riedle
ME10 International Conference on Ultrafast Phenomena (UP) 2010
Willem L. Vos and Martijn Wubs
EG_7_2 European Quantum Electronics Conference (EQEC) 2015
Ralf Brune, Sören Doose, and Markus Sauer
6633_57 European Conference on Biomedical Optics (ECBO) 2007