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. 2020 Mar 17;5(12):6947–6955. doi: 10.1021/acsomega.0c00322

Table 1. Results Obtained from the Numerical Fit to the TSCPC Histograms Shown in Figure 4aa.

condition sample τ1/ns τ2/ns α1 α2 τint/ns τamp/ns
confocal D only 3.42   1   3.42 3.42
  D–A 40 bp 3.30   1   3.30 3.30
ZMW 110 nm D only 1.89 0.40 0.76 0.24 1.79 1.54
  D–A 40 bp 1.77 0.40 0.67 0.33 1.63 1.32
a

In the case of a biexponential fit, τ1 and τ2 are the individual lifetimes of each component and α1 and α2 are their respective normalized amplitudes. τamp = (α1τ1 + α2τ2)/(α1 + α2) is the amplitude-averaged lifetime, while τint = (α1τ12 + α2τ22)/(α1τ1 + α2τ2) denotes the intensity-averaged lifetime. The 20 ps scattering peak at t = 0 is not shown here.