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. Author manuscript; available in PMC: 2009 Sep 16.
Published in final edited form as: Plasmonics. 2007 Mar 1;2(1):1–4. doi: 10.1007/s11468-007-9023-1

Figure 4.

Figure 4

a Histograms of total photons detected prior to photobleaching from Cy5 molecules on glass (green) and SIFs (red). b Histograms of lifetimes from Cy5 molecules on glass (white) and SIFs (gray). The fluorescence lifetime of single molecules was measured by time- correlated single photon counting with the TimeHarp 200 PCI-board (PicoQuant). Lifetimes were estimated by fitting to a χ2 value of less than 1.2 and with a residuals trace that was fully symmetrical about the zero axis.