Sample: mixture of Coumarin6 and Rubrenein 
ethanol solution, concentrations on the order of 100nM.
Excitation: LDH440, 434 nm
TRES in range 460-700nm, 4nm steps, 60 decay curves.
Both dyes have a single exponential decay,
tau(C6) = 2.56ns, tau(Rubrene) = 9.5 ns. 