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. Author manuscript; available in PMC: 2012 Apr 23.
Published in final edited form as: J Phys Chem A. 2010 Nov 4;114(43):11483–11491. doi: 10.1021/jp103608d

Figure 2.

Figure 2

Normalized transient absorption signals for non-human melanins (a) and human melanins (b) detected using 810 nm pump and 750 nm probe pulses. The signals were normalized for input laser intensities and pump absorbance. All samples exhibit rapid non-exponential decays as well as small phase shifts (signal in X and Y channels of the lock-in amplifier – see text). The decays are similar yet distinct in intensity and time dependence when comparing melanins within the same subclass (eumelanins or pheomelanins).