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. Author manuscript; available in PMC: 2011 May 5.
Published in final edited form as: J Am Chem Soc. 2010 May 5;132(17):6081–6090. doi: 10.1021/ja909850s

Figure 8.

Figure 8

Univariate histograms of: (a) Side scatter intensity; and (b) SERS intensity for approximately 8,000 safranine-labeled SERS-tags as a function of three different laser power levels: 1 mW (black), 1.5 mW (red), 3 mW (blue). For comparison, bivariate histograms for the same particle sets showing light scatter versus Raman signal for: (c) 1 mW laser power; (d) 3 mW laser power. Excitation at 532 nm, 250 μs integration time per particle. Color contours represent particle counts as per Figure 6.